Question

An observatory is shaped like a cylinder standing on one of its bases with a dome on top.The diameter of the floor of the observatory is 64 feet.Witch measurement is closest to the circumference of the base of the observatory in feet ?

Answer 1

200.96 ft

Explanation:

I took the test and I got it right.

Hope this helped!

Answer 2

`200.96\ ft`

Explanation:

we know that

The circumference of a circle is equal to

`C=\pi D`

in this problem

`D=64\ ft`

substitute

`C=\pi (64)=64\pi\ ft` -----> exact value of the circumference

Find the approximate value of the circumference

assume

`\pi=3.14`

`64\pi\ ft=64(3.14)=200.96\ ft`