the area of circle is 154 cm² is find the circumference of the circle
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Answer:
Circle
Solve for circumference
C≈43.99cm
A Area
154
cm²
d
r
r
r
d
d
C
A
Using the formulas
A=πr2
C=2πr
Solving forC
C=2πA=2·π·154≈43.99115cm
area=154cm square
area=pi r square
154cm=22/7×r ×r
154cm×7/22=r×r
49cm=r square
r=7cm
circumference =2 pi r
2×22/7×7cm
2×22cm
44cm
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