find the area of a circle whose diameter is 1.4m
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r=1.4/2=0.7
now 22/7*7/10*7/10
22*7/100
154/100=1.54m2
hope it helps you
diameter =d/2 i. e 0.7
=22/7 × 7/10 ×7/10
=154/100
=1.54
Hope it helps you....!!!