# What will be the Circumference of Circle? If

The difference between the circumference and radius of a circle is 37 cm., then the circumference of that circle is:

- 7 cm
- 44 cm
- 154 cm
- None of these

**Answer: (1) 7 cm**

**Explanation:-**

The difference between the circumference and radius of a circle = 37 cm

**Formula-**

**The circumference of a circle = 2 x pai x r**

**Where, r = radius of a circle.**

Then, 2 x pai x r – r = 37

r ( 2 x 22/7 – 1) = 37

r (44 – 7 )/7 = 37

37 r = 37 x 7

r = 7

Then, the radius of the circle is 7 cm

Hence, the answer is (1) 7 cm.