Question

A large planetarium in the shape of a dome is being built at MHS. When it is complete, the base of the dome will have a circumference of 870 meters. What is the area of land required for this planetarium

Answer 1

Answer:

☆ ANSWER ☆

GIVEN :

CIRCUMFERENCE = 870 m

TO FIND :

AREA REQUIRED BY THE DOME

PROOF :

$circumference = 2r\pi \\ 870 = 44 \div 7 \times r \\ r = 138.40$

$area \: = \pi {r}^{2} \\ \: \: \: \: \: = 22 \div 7 \times 138.40 {}^{2} \\ = 60200 \: m$

HOPE THAT HELPS