the area of a circle is 154 square find its circumference
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Answered by
2
Pi.r^2=154.
22/7*r^2=154.
r^2=154/(22/7)=49.
r=sqrt(49)=7.
Circumference=2*22/7*7=44 cm.
22/7*r^2=154.
r^2=154/(22/7)=49.
r=sqrt(49)=7.
Circumference=2*22/7*7=44 cm.
Answered by
2
Answer:44
Step-by-step explanation:154=22/7×r^2
154×7/22=r^2
49=r^2
r=7
Circumference=2×22/7×r
=2×22/7×7
=44.
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