5. The circumference of a circular flower-bed is 132 m. Find its area.
Answers
Answered by
3
Step-by-step explanation:
Let the radius of the circle is r cm
Perimeter of a circle =2πr=132
2×
7
22
×r=132
r=
22×2
132×7
r=21 cm
Area of the circle =πr
2
=
7
22
×21×21
=1386 cm
2
Answered by
2
Answer:
circumference of a circular = 2πr
132 =6.28r
r=132/6.28
r=21
area of circle=πr^2
=3.14×21×21
=1384.74m^2
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