Question

Calculate the surface area of the object provided.

A. 56 cm
B. 64cm³
C. 80cm²
D. 112cm²

Answer 1

Answer: B. 64 cm³

Explanation:

Let's lenth of the object set is a, width - b and height - h

Thus,

V=abh

a=8 cm b=2 cm h=4 cm

Hence,

V=8*2*4

V=64 cm³

Answer 2

112cm^2

Explanation:

A=2(wl+hl+hw)=2·(2·8+4·8+4·2)=112