Problema Solution

The altitude of the pentagonal prism is 20 cm. The lenghths of the edges of the base are 3,4,8,8,and 9 cm. What is the area of its lateral surface?

Answer provided by our tutors

Lateral  Surface area : ph :

p = base perimeter=3+4+8+8+9=32 cm.

h=height =20 cm.

SA =20*32

=640 sq cm.