Question

2 cubes each of volume 64 cm square are joined end to end find the surface area of the resulting cube​

Answer 1

Step-by-step explanation:

Answer. ⇒s=4 cm. ∴ The surface area of the resulting cuboid is 160 cm².

Answer 2

Answer:

160cm²

The volume is 64cm³ and object is a cube

Volume = side³

64 cm³ = side³

side = (64cm³)⅓...cube root

side = 4cm

We have 2 cubes of each side 4 cm attached together

So the new dimensions will be

length = 8 cm

breadth = 4 cm

height = 4 cm

Surface area = 2 ( lb+ lh + bh)

S.A = 2 [( 8 cm × 4 cm ) + ( 8 cm × 4cm ) + ( 4 cm × 4 cm)

S.A = 2 [ 32 cm² + 32 cm² + 16 cm²]

S.A = 2 × 80cm²

S.A = 160 cm²