Q4 of 49 Page 1

If the difference between the circumference and the radius of a circle is 37 cm, then using π = (22/7), calculate the circumference (in cm) of the circle.

Let Radius of given circle be r cm.

Circumference of Circle = 2 × π × r


According to question-


∴ (2 × π × r) - r = 37


⇒ (2×π -1)×r = 37


⇒ [(44/7)-1]r = 37


⇒ (37/7)r = 37


⇒ r = 7 cm


Thus, Circumference of circle = 2× (22/7) × 7 = 44 cm.


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