Question

find the area of a quadrant of a circle whose circumference is 22cm

Answer 1

90/360 into 11/pie X 11/pie

Answer 2

C=2pie r
22 =2×22/7×r
22×7/44=r
3.5=r
As we know its quadrant
So, =A=1/4×pie×r²
=1/4×22/7×3.5×3.5
= 9.625 cm ²

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