297714
If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, we get:
1 Cone of height 5cm, base 3cm
2 Triangle of height 5cm, base 3cm
3 Cone of height 5cm, base 6cm
4 Triangle of height 5cm, base 6cm
Explanation:
Cone of height 5cm, base 3cm If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, then we get a cone of height 5cm and base 3cm.
PRACTICAL GEOMETRY
297715
Construct a right angled \(\triangle{\text{ABC}}\) with \(\angle{\text{B}}\) = 90° BC = 5cm and AC = 10cm and find the the length of side AB:
1 6.2cm
2 5cm
3 8.7cm
4 7.2cm
Explanation:
8.7cm Step 1: Draw a line segment BC = 5cm Step 2: At B draw an angle of 90° and extend the ray. Step 3: Now taking C and centre draw an arc of radius 10cm intersecting the previous ray at A. Step 4: Join C to A. Now using a ruler measure $AB = 8.7cm
PRACTICAL GEOMETRY
297716
Mark \((\checkmark)\) against the correct answer. In the given figure, two straight lines AB and CD intersect at a point O and \(\angle\text{AOC}=50^\circ\). Then, \(\angle\text{BOD}={ ?}\) 2
1 40°
2 50°
3 130°
4 60°
Explanation:
40° AB and CD intersect each other at O and \(\angle\text{AOC}=50^\circ\) \(\angle\text{BOD}=\angle\text{AOC}=50^\circ\) (Vertically opposite angles)
PRACTICAL GEOMETRY
297717
Mark \((\checkmark)\) against the correct answer. In the given figure, it is given that AOB is a straight line and 4x = 5y. What is the value of x? 3
1 100
2 105
3 110
4 115
Explanation:
100 AOB is a straight line x + y = 180° But 4x = 5y \(\therefore\frac{5}{4}\text{y}+\text{y}=180^\circ\) \(\frac{\text{5y}+\text{4y}}{4}=180^\circ\) \(\Rightarrow\frac{9\text{y}}{4}=180^\circ\) \(\text{y}=\frac{180^\circ\times4}{9}=80^\circ\) \(\therefore\text{x}=\frac{5}{4}\text{y}=\frac{5}{4}\times80=100^\circ\)
PRACTICAL GEOMETRY
297718
Out of the following which is a 3-D figure?
1 Square
2 Sphere
3 Triangle
4 Circle
Explanation:
Sphere Square, triangle and circle are 2-D figures while sphere is the 3-D figure. Hence, (b) is the correct option.
297714
If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, we get:
1 Cone of height 5cm, base 3cm
2 Triangle of height 5cm, base 3cm
3 Cone of height 5cm, base 6cm
4 Triangle of height 5cm, base 6cm
Explanation:
Cone of height 5cm, base 3cm If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, then we get a cone of height 5cm and base 3cm.
PRACTICAL GEOMETRY
297715
Construct a right angled \(\triangle{\text{ABC}}\) with \(\angle{\text{B}}\) = 90° BC = 5cm and AC = 10cm and find the the length of side AB:
1 6.2cm
2 5cm
3 8.7cm
4 7.2cm
Explanation:
8.7cm Step 1: Draw a line segment BC = 5cm Step 2: At B draw an angle of 90° and extend the ray. Step 3: Now taking C and centre draw an arc of radius 10cm intersecting the previous ray at A. Step 4: Join C to A. Now using a ruler measure $AB = 8.7cm
PRACTICAL GEOMETRY
297716
Mark \((\checkmark)\) against the correct answer. In the given figure, two straight lines AB and CD intersect at a point O and \(\angle\text{AOC}=50^\circ\). Then, \(\angle\text{BOD}={ ?}\) 2
1 40°
2 50°
3 130°
4 60°
Explanation:
40° AB and CD intersect each other at O and \(\angle\text{AOC}=50^\circ\) \(\angle\text{BOD}=\angle\text{AOC}=50^\circ\) (Vertically opposite angles)
PRACTICAL GEOMETRY
297717
Mark \((\checkmark)\) against the correct answer. In the given figure, it is given that AOB is a straight line and 4x = 5y. What is the value of x? 3
1 100
2 105
3 110
4 115
Explanation:
100 AOB is a straight line x + y = 180° But 4x = 5y \(\therefore\frac{5}{4}\text{y}+\text{y}=180^\circ\) \(\frac{\text{5y}+\text{4y}}{4}=180^\circ\) \(\Rightarrow\frac{9\text{y}}{4}=180^\circ\) \(\text{y}=\frac{180^\circ\times4}{9}=80^\circ\) \(\therefore\text{x}=\frac{5}{4}\text{y}=\frac{5}{4}\times80=100^\circ\)
PRACTICAL GEOMETRY
297718
Out of the following which is a 3-D figure?
1 Square
2 Sphere
3 Triangle
4 Circle
Explanation:
Sphere Square, triangle and circle are 2-D figures while sphere is the 3-D figure. Hence, (b) is the correct option.
297714
If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, we get:
1 Cone of height 5cm, base 3cm
2 Triangle of height 5cm, base 3cm
3 Cone of height 5cm, base 6cm
4 Triangle of height 5cm, base 6cm
Explanation:
Cone of height 5cm, base 3cm If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, then we get a cone of height 5cm and base 3cm.
PRACTICAL GEOMETRY
297715
Construct a right angled \(\triangle{\text{ABC}}\) with \(\angle{\text{B}}\) = 90° BC = 5cm and AC = 10cm and find the the length of side AB:
1 6.2cm
2 5cm
3 8.7cm
4 7.2cm
Explanation:
8.7cm Step 1: Draw a line segment BC = 5cm Step 2: At B draw an angle of 90° and extend the ray. Step 3: Now taking C and centre draw an arc of radius 10cm intersecting the previous ray at A. Step 4: Join C to A. Now using a ruler measure $AB = 8.7cm
PRACTICAL GEOMETRY
297716
Mark \((\checkmark)\) against the correct answer. In the given figure, two straight lines AB and CD intersect at a point O and \(\angle\text{AOC}=50^\circ\). Then, \(\angle\text{BOD}={ ?}\) 2
1 40°
2 50°
3 130°
4 60°
Explanation:
40° AB and CD intersect each other at O and \(\angle\text{AOC}=50^\circ\) \(\angle\text{BOD}=\angle\text{AOC}=50^\circ\) (Vertically opposite angles)
PRACTICAL GEOMETRY
297717
Mark \((\checkmark)\) against the correct answer. In the given figure, it is given that AOB is a straight line and 4x = 5y. What is the value of x? 3
1 100
2 105
3 110
4 115
Explanation:
100 AOB is a straight line x + y = 180° But 4x = 5y \(\therefore\frac{5}{4}\text{y}+\text{y}=180^\circ\) \(\frac{\text{5y}+\text{4y}}{4}=180^\circ\) \(\Rightarrow\frac{9\text{y}}{4}=180^\circ\) \(\text{y}=\frac{180^\circ\times4}{9}=80^\circ\) \(\therefore\text{x}=\frac{5}{4}\text{y}=\frac{5}{4}\times80=100^\circ\)
PRACTICAL GEOMETRY
297718
Out of the following which is a 3-D figure?
1 Square
2 Sphere
3 Triangle
4 Circle
Explanation:
Sphere Square, triangle and circle are 2-D figures while sphere is the 3-D figure. Hence, (b) is the correct option.
297714
If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, we get:
1 Cone of height 5cm, base 3cm
2 Triangle of height 5cm, base 3cm
3 Cone of height 5cm, base 6cm
4 Triangle of height 5cm, base 6cm
Explanation:
Cone of height 5cm, base 3cm If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, then we get a cone of height 5cm and base 3cm.
PRACTICAL GEOMETRY
297715
Construct a right angled \(\triangle{\text{ABC}}\) with \(\angle{\text{B}}\) = 90° BC = 5cm and AC = 10cm and find the the length of side AB:
1 6.2cm
2 5cm
3 8.7cm
4 7.2cm
Explanation:
8.7cm Step 1: Draw a line segment BC = 5cm Step 2: At B draw an angle of 90° and extend the ray. Step 3: Now taking C and centre draw an arc of radius 10cm intersecting the previous ray at A. Step 4: Join C to A. Now using a ruler measure $AB = 8.7cm
PRACTICAL GEOMETRY
297716
Mark \((\checkmark)\) against the correct answer. In the given figure, two straight lines AB and CD intersect at a point O and \(\angle\text{AOC}=50^\circ\). Then, \(\angle\text{BOD}={ ?}\) 2
1 40°
2 50°
3 130°
4 60°
Explanation:
40° AB and CD intersect each other at O and \(\angle\text{AOC}=50^\circ\) \(\angle\text{BOD}=\angle\text{AOC}=50^\circ\) (Vertically opposite angles)
PRACTICAL GEOMETRY
297717
Mark \((\checkmark)\) against the correct answer. In the given figure, it is given that AOB is a straight line and 4x = 5y. What is the value of x? 3
1 100
2 105
3 110
4 115
Explanation:
100 AOB is a straight line x + y = 180° But 4x = 5y \(\therefore\frac{5}{4}\text{y}+\text{y}=180^\circ\) \(\frac{\text{5y}+\text{4y}}{4}=180^\circ\) \(\Rightarrow\frac{9\text{y}}{4}=180^\circ\) \(\text{y}=\frac{180^\circ\times4}{9}=80^\circ\) \(\therefore\text{x}=\frac{5}{4}\text{y}=\frac{5}{4}\times80=100^\circ\)
PRACTICAL GEOMETRY
297718
Out of the following which is a 3-D figure?
1 Square
2 Sphere
3 Triangle
4 Circle
Explanation:
Sphere Square, triangle and circle are 2-D figures while sphere is the 3-D figure. Hence, (b) is the correct option.
297714
If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, we get:
1 Cone of height 5cm, base 3cm
2 Triangle of height 5cm, base 3cm
3 Cone of height 5cm, base 6cm
4 Triangle of height 5cm, base 6cm
Explanation:
Cone of height 5cm, base 3cm If we rotate a right-angled triangle of height 5cm and base 3cm about its height a full turn, then we get a cone of height 5cm and base 3cm.
PRACTICAL GEOMETRY
297715
Construct a right angled \(\triangle{\text{ABC}}\) with \(\angle{\text{B}}\) = 90° BC = 5cm and AC = 10cm and find the the length of side AB:
1 6.2cm
2 5cm
3 8.7cm
4 7.2cm
Explanation:
8.7cm Step 1: Draw a line segment BC = 5cm Step 2: At B draw an angle of 90° and extend the ray. Step 3: Now taking C and centre draw an arc of radius 10cm intersecting the previous ray at A. Step 4: Join C to A. Now using a ruler measure $AB = 8.7cm
PRACTICAL GEOMETRY
297716
Mark \((\checkmark)\) against the correct answer. In the given figure, two straight lines AB and CD intersect at a point O and \(\angle\text{AOC}=50^\circ\). Then, \(\angle\text{BOD}={ ?}\) 2
1 40°
2 50°
3 130°
4 60°
Explanation:
40° AB and CD intersect each other at O and \(\angle\text{AOC}=50^\circ\) \(\angle\text{BOD}=\angle\text{AOC}=50^\circ\) (Vertically opposite angles)
PRACTICAL GEOMETRY
297717
Mark \((\checkmark)\) against the correct answer. In the given figure, it is given that AOB is a straight line and 4x = 5y. What is the value of x? 3
1 100
2 105
3 110
4 115
Explanation:
100 AOB is a straight line x + y = 180° But 4x = 5y \(\therefore\frac{5}{4}\text{y}+\text{y}=180^\circ\) \(\frac{\text{5y}+\text{4y}}{4}=180^\circ\) \(\Rightarrow\frac{9\text{y}}{4}=180^\circ\) \(\text{y}=\frac{180^\circ\times4}{9}=80^\circ\) \(\therefore\text{x}=\frac{5}{4}\text{y}=\frac{5}{4}\times80=100^\circ\)
PRACTICAL GEOMETRY
297718
Out of the following which is a 3-D figure?
1 Square
2 Sphere
3 Triangle
4 Circle
Explanation:
Sphere Square, triangle and circle are 2-D figures while sphere is the 3-D figure. Hence, (b) is the correct option.
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