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

Answer:

$200.96\ ft$

Step-by-step 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

$\pi=3.14$

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