Question

circum ference of circle given area 287cm​

Answer 1

Given the radius of a circle, the circumference can be calculated using the formula

Circumference = 2 π R

where:

R is the radius of the circle

π is Pi, approximately 3.142

See also Derivation of circumference formula

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Answer 2

Area of Square = 287

πr² = 287

22/7 × R² = 287

R² = 287 × 7 /22

R² = 91.31

R = √ 91.31

R = 9.55 cm

Therefore,

Circumference of circle = 2πR = 2 × 3.14 × 9.55 = 59.97 cm or 60 cm ( approx ).

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