False False Two acute angles may vary from 0° to 89°. Hence, acute angles having different measures ar not congruent.
16. UNDERSTADNING ELEMENTARY SHAPES
288771
A triangle can have:
1 One right angle
2 Two right angles
3 Three obtuse angles
4 None of these
Explanation:
One right angle Right angled triangle is a type of a triangle where one angle is right angle. By angle sum property, sum of angles of a triangle =180° If two angles are right angles in a triangle, then according to angle sum property, third angle = 0° This is not possible for a triangle. So, other two angles have to be acute angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288772
The sum of two acute angles can be:
1 Acute angles
2 Obtuse angles
3 Right angles
4 All of the above
Explanation:
All of the above Let one angle is 30° and the other angle is 40° then sum70°. which is an acute angle. Let one angle be 70° and other angle is 80°, then sum is 150° which is obtuse angle. Let one angle is 45° and another angle is 45° then sum is 90° which is right angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288773
The edges of a surface are:
1 Curves
2 Lines
3 Flat
4 Circles
Explanation:
Lines The edges of a surface are lines.
16. UNDERSTADNING ELEMENTARY SHAPES
288774
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is:
1 an isosceles triangle
2 an obtuse triangle
3 an equilateral triangle
4 a right triangle
Explanation:
a right triangle Let the angles of a triabgle be \(\alpha, \beta, \gamma\) Given \(\alpha + \beta = \gamma\) We now that in a sum of triangles sum of angles is is 180° So, \(\alpha + \beta + \gamma = 180^\circ\)\(\Rightarrow 2\gamma = 180^\circ\) \(\Rightarrow \gamma = 90^\circ.\)
False False Two acute angles may vary from 0° to 89°. Hence, acute angles having different measures ar not congruent.
16. UNDERSTADNING ELEMENTARY SHAPES
288771
A triangle can have:
1 One right angle
2 Two right angles
3 Three obtuse angles
4 None of these
Explanation:
One right angle Right angled triangle is a type of a triangle where one angle is right angle. By angle sum property, sum of angles of a triangle =180° If two angles are right angles in a triangle, then according to angle sum property, third angle = 0° This is not possible for a triangle. So, other two angles have to be acute angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288772
The sum of two acute angles can be:
1 Acute angles
2 Obtuse angles
3 Right angles
4 All of the above
Explanation:
All of the above Let one angle is 30° and the other angle is 40° then sum70°. which is an acute angle. Let one angle be 70° and other angle is 80°, then sum is 150° which is obtuse angle. Let one angle is 45° and another angle is 45° then sum is 90° which is right angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288773
The edges of a surface are:
1 Curves
2 Lines
3 Flat
4 Circles
Explanation:
Lines The edges of a surface are lines.
16. UNDERSTADNING ELEMENTARY SHAPES
288774
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is:
1 an isosceles triangle
2 an obtuse triangle
3 an equilateral triangle
4 a right triangle
Explanation:
a right triangle Let the angles of a triabgle be \(\alpha, \beta, \gamma\) Given \(\alpha + \beta = \gamma\) We now that in a sum of triangles sum of angles is is 180° So, \(\alpha + \beta + \gamma = 180^\circ\)\(\Rightarrow 2\gamma = 180^\circ\) \(\Rightarrow \gamma = 90^\circ.\)
False False Two acute angles may vary from 0° to 89°. Hence, acute angles having different measures ar not congruent.
16. UNDERSTADNING ELEMENTARY SHAPES
288771
A triangle can have:
1 One right angle
2 Two right angles
3 Three obtuse angles
4 None of these
Explanation:
One right angle Right angled triangle is a type of a triangle where one angle is right angle. By angle sum property, sum of angles of a triangle =180° If two angles are right angles in a triangle, then according to angle sum property, third angle = 0° This is not possible for a triangle. So, other two angles have to be acute angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288772
The sum of two acute angles can be:
1 Acute angles
2 Obtuse angles
3 Right angles
4 All of the above
Explanation:
All of the above Let one angle is 30° and the other angle is 40° then sum70°. which is an acute angle. Let one angle be 70° and other angle is 80°, then sum is 150° which is obtuse angle. Let one angle is 45° and another angle is 45° then sum is 90° which is right angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288773
The edges of a surface are:
1 Curves
2 Lines
3 Flat
4 Circles
Explanation:
Lines The edges of a surface are lines.
16. UNDERSTADNING ELEMENTARY SHAPES
288774
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is:
1 an isosceles triangle
2 an obtuse triangle
3 an equilateral triangle
4 a right triangle
Explanation:
a right triangle Let the angles of a triabgle be \(\alpha, \beta, \gamma\) Given \(\alpha + \beta = \gamma\) We now that in a sum of triangles sum of angles is is 180° So, \(\alpha + \beta + \gamma = 180^\circ\)\(\Rightarrow 2\gamma = 180^\circ\) \(\Rightarrow \gamma = 90^\circ.\)
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16. UNDERSTADNING ELEMENTARY SHAPES
288890
Two acute angles are congruent.
1 True
2 False
Explanation:
False False Two acute angles may vary from 0° to 89°. Hence, acute angles having different measures ar not congruent.
16. UNDERSTADNING ELEMENTARY SHAPES
288771
A triangle can have:
1 One right angle
2 Two right angles
3 Three obtuse angles
4 None of these
Explanation:
One right angle Right angled triangle is a type of a triangle where one angle is right angle. By angle sum property, sum of angles of a triangle =180° If two angles are right angles in a triangle, then according to angle sum property, third angle = 0° This is not possible for a triangle. So, other two angles have to be acute angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288772
The sum of two acute angles can be:
1 Acute angles
2 Obtuse angles
3 Right angles
4 All of the above
Explanation:
All of the above Let one angle is 30° and the other angle is 40° then sum70°. which is an acute angle. Let one angle be 70° and other angle is 80°, then sum is 150° which is obtuse angle. Let one angle is 45° and another angle is 45° then sum is 90° which is right angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288773
The edges of a surface are:
1 Curves
2 Lines
3 Flat
4 Circles
Explanation:
Lines The edges of a surface are lines.
16. UNDERSTADNING ELEMENTARY SHAPES
288774
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is:
1 an isosceles triangle
2 an obtuse triangle
3 an equilateral triangle
4 a right triangle
Explanation:
a right triangle Let the angles of a triabgle be \(\alpha, \beta, \gamma\) Given \(\alpha + \beta = \gamma\) We now that in a sum of triangles sum of angles is is 180° So, \(\alpha + \beta + \gamma = 180^\circ\)\(\Rightarrow 2\gamma = 180^\circ\) \(\Rightarrow \gamma = 90^\circ.\)
False False Two acute angles may vary from 0° to 89°. Hence, acute angles having different measures ar not congruent.
16. UNDERSTADNING ELEMENTARY SHAPES
288771
A triangle can have:
1 One right angle
2 Two right angles
3 Three obtuse angles
4 None of these
Explanation:
One right angle Right angled triangle is a type of a triangle where one angle is right angle. By angle sum property, sum of angles of a triangle =180° If two angles are right angles in a triangle, then according to angle sum property, third angle = 0° This is not possible for a triangle. So, other two angles have to be acute angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288772
The sum of two acute angles can be:
1 Acute angles
2 Obtuse angles
3 Right angles
4 All of the above
Explanation:
All of the above Let one angle is 30° and the other angle is 40° then sum70°. which is an acute angle. Let one angle be 70° and other angle is 80°, then sum is 150° which is obtuse angle. Let one angle is 45° and another angle is 45° then sum is 90° which is right angle.
16. UNDERSTADNING ELEMENTARY SHAPES
288773
The edges of a surface are:
1 Curves
2 Lines
3 Flat
4 Circles
Explanation:
Lines The edges of a surface are lines.
16. UNDERSTADNING ELEMENTARY SHAPES
288774
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is:
1 an isosceles triangle
2 an obtuse triangle
3 an equilateral triangle
4 a right triangle
Explanation:
a right triangle Let the angles of a triabgle be \(\alpha, \beta, \gamma\) Given \(\alpha + \beta = \gamma\) We now that in a sum of triangles sum of angles is is 180° So, \(\alpha + \beta + \gamma = 180^\circ\)\(\Rightarrow 2\gamma = 180^\circ\) \(\Rightarrow \gamma = 90^\circ.\)
