VISUALISING SOLID SHAPES
298608
If two cubes of edge 5 cm each is joined end to end, find the surface area of the resulting cuboid.
1 250cm2
2 350cm2
3 400cm2
4 500cm2
Explanation:
250cm2
Edge of the cube = 5cm
After joining two cubes,
Total length, l = 5 + 5 = 10cm
Breadth, b = 5cm and Height, h = 5cm
\(\therefore\) Surface Area = 2(lb + bh + lh)
= 2(10 × 5 + 5 × 5 + 5 × 10)
= 2 × 125
= 250cm2