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# Find the area of the following circles, given that:

(a) radius = 14 mm (Take π = 22/7) (b) diameter = 49 m

(c) radius = 5 cm

**Solution:**

(a) Radius of the circle = 14 mm

Area of circle = πr^{2}

= 22/7 × 14 mm × 14 mm

= 22 × 2 mm × 14 mm

= 616 mm^{2}

(b) Diameter of the circle = 49 m

Therefore, radius = diameter/2 = 24.5 m

Area of circle = πr^{2}

= 22/7 × 24.5 m × 24.5 m

= 22 × 24.5 m × 3.5 m

= 1886.5 m^{2}

(c) Radius of the circle = 5 cm

Area of circle = πr^{2}

= 22/7 × 5 cm × 5 cm

= 550/7 cm^{2}

= 78.57 cm^{2}

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

**Video Solution:**

## Find the area of the following circles, given that (a) radius = 14 mm (Take π = 22/7) (b) diameter = 49 m (c) radius = 5 cm

Class 7 Maths NCERT Solutions Chapter 11 Exercise 11.3 Question 2

**Summary:**

The area of the following circles, given that (a) radius = 14 mm, area = 616 mm^{2 }(b) diameter = 49 m, area = 1886.5 m^{2 }(c) radius = 5 cm, area = 78.57 cm^{2}

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