If the area of a circle is 324 cm, find: Its circumference in terms of pi

Question

asked Apr 27, 2021 175k views

1 Answer

Jose Paredes · Answer 1 · 2021-05-03T13:39:13+0000

Answer:

20.3π cm

Explanation:

Area of a circle = 324 square cm

πr² = 324

$(22)/(7)*r^(2)= 324\\\\ r^(2) = (324*7)/(22)\\\\ r^(2)= 103.09\\\\ r =√(103.09)\\\\$

r = 10.15 cm

Circumference = 2πr

= 2 * π * 10.15

= 20.3π cm