the area of a circle is 154 cm square and circumference of a circle is
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8
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
circumference of a circle is 44cm
Answered by
4
Answer:
πr^2=area of circle
πr^2=154
r^2=154×7/22
r^2=49
r=√49
r=7cm
circumference of circle=2πr
=2×22/7×7
=44cm
hope it help you
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