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# Circumference of a circle disc is 88 cm. Its radius is

(a) 8 cm

(b) 11 cm

(c) 14 cm

(d) 44 cm

**Solution:**

Given, circumference of a circle disc is 88 cm

We have to find the radius of disc

Circumference of circle = 2πr

Where, r is the radius of circle

88 = 2 × 22/7 × r

88 = 44/7 × r

r = 88(7)/44

r = 2(7)

r = 14 cm

Therefore, the radius is 14 cm

**✦ Try This: **Circumference of a circle disc is 44 cm. Its radius is

Given, circumference of a circle disc is 44 cm

We have to find the radius of disc

Circumference of circle = 2πr

Where, r is the radius of circle

44 = 2 × 22/7 × r

44 = 44/7 × r

r = 44(7)/44

r = 7 cm

Therefore, the radius is 7 cm

**☛ Also Check: **NCERT Solutions for Class 7 Maths Chapter 11

**NCERT Exemplar Class 7 Maths Chapter 9 Problem 20**

## Circumference of a circle disc is 88 cm. Its radius is (a) 8 cm, (b) 11 cm, (c) 14 cm, (d) 44 cm

**Summary:**

Circumference of a circle disc is 88 cm. Its radius is 14 cm.

**☛ Related Questions:**

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- Area of circular garden with diameter 8 m is (a) 12.56 m², (b) 25.12 m², (c) 50.24 m², (d) 200.96 m²
- Area of a circle with diameter ‘m’ radius ‘n’ and circumference ‘p’ is (a) 2πn, (b) πm², (c) πp², (d . . . .

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