Question

find the radius and circumference of circle whose area is 6.16m

Answer 1

   answer    r≈1.4

Area of circle= πr²

6.16 = 22/7 × r²

6.16× 7/22= r²

1.96 = r²

1.4= r

Circumference of circle = 2πr

= 2× 22/7 × 1.4

= 8.8 cm

Answer 2

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