Question

the cirumference of a circle exceeds its radius by 37cm.find the diameter of the circle.

Answer 1

Circumference - Radius = 37.

=> 2 pi r - r = 37

=> 2*22r/7 - r = 37.

=> 44r/7 - r = 37

=> (44r-7r) / 7 = 37

=> 37r/7 = 37

=> r = 37*7/37

=> r = 7

Radius = 7 cm

Answer 2

Circumference - Radius = 37.

=> 2 pi r - r = 37

=> 2*22r/7 - r = 37.

=> 44r/7 - r = 37

=> (44r-7r) / 7 = 37

=> 37r/7 = 37

=> r = 37*7/37

=> r = 7

Radius = 7 cm