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



User Utengr
by
7.9k points

1 Answer

3 votes

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

User Jose Paredes
by
8.1k points

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