find the area of circle whose circumference is 132 cm
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2
Answer:
(i) Circumference of circle = 132 cm
2πr = 132
2 x 22/7 x r = 132
r = (132 x 7)/(2 x 22)
r = 21cm
∴ Area of circle = πr2
= 22/7 x 21 x 21
= 1386 cm2
(ii) Circumference of circle = 22 m
∴ 2πr = 22
2 x 22/7 x r = 22
r = (22 x 7)/(2 x 22)
r = 7/2
r = 3.5 m
Area of circle = πr2
= 22/7 x 3.5 x 3.5
= 38.5 m2
Answered by
2
Answer:
A≈1386.56
Step-by-step explanation:
A==Area,
C=circumference
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