Question

the difference between the circumference and the radius of a circle is 37 cm find the area of the circle​

Answer 1

circumference = 2πr

radius = r

2πr - r = 37cm

r(2π - 1) = 37

r = 37 ÷ (2π - 1)

area of circle = πr^2

putting value of r

A = π x 1369 ÷ (2 x 3.14 - 1)

A = 3.14 x 1369 ÷ (2 x 3.14 - 1)

solve this and get the answer

Answer 2

Answer:

difference=c-r

37 = 2pie r-r

37=2×22r/7 -r

37=44r/7-r

37=37r/7

by cross-multiplication

37×7=37r

259=37r

r=7cm

so now,

area of circle =pie r square

22/7×(7)^2

154cm^2

hope u got helped

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