Question

A roof in the shape of a half-cylinder covers the a local soccer field so kids can play soccer

year-round. The building has a length of 80 feet and a width of 50 feet. Calculate the lateral
area of the roof. Use = 3.14.

Answer 1

6,280 ft³

Explanation:

To find lateral surface area, use the formula L = 2
`\pi`rh, then plug in the values:

L = 2(3.14)(25)(80)

L = 12,560 ft³

Since its a half cylinder, we have to divide this by 2:

12,560/2 = 6,280

So, the lateral area of the roof is 6,280 ft³