The area of a circle is 154cmsq.Its diameter is ?
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area of the circle A= πr^2
A is given as 154
.'. πr^2 = 154. π=22/7
r^2= 154×7/22
r^2 =49
r=√49
r=7
dia of the circle D=2r
.'. D =2×7
A is given as 154
.'. πr^2 = 154. π=22/7
r^2= 154×7/22
r^2 =49
r=√49
r=7
dia of the circle D=2r
.'. D =2×7
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