8) If the area of a circle is 36 cm, find its radius and circumference.
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radius= 13.5
circumference=0
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0
Answer:
area = 36 cm^2
pie r^2 = 36
22/7 r^2 = 36
r^2 = 36 * 7/22
r^2 = 252/22
r^2 = 11.4
r = root 11.4
r = 3.3
circumference = 2 pie r
= 2 * 22/7 * 33/10
= 1452/7
= 20.7 cm
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