Question

(d) If a cube and cylinder have the same height (as shown in Fig. 7), determine which
one has a larger surface area. (Hint: T1 =
22
5 cm
= 21
4 cm
6 cm
5 cm
4 cm
5 cm
Fig. 6
Fig. 7​

Answer 1

Answer:

Euler's formula for solids ⇒ Faces+ Vertices− Edges =2

The given solid in the image is a Cuboid

∴ Faces of the cuboid =6

Vertices=8

Edges =12

putting these values in Euler's formula ⇒6+8−12=2

Hence, Verified.