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The Circumference of a Circle is 31.4 Cm. Find the Radius and the Area of the Circle? (Take π = 3.14) - Mathematics

The circumference of a circle is 31.4 cm. Find the radius and the area of the circle? (Take π = 3.14)

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Solution

Circumference = 2πr = 31.4 cm

2 × 3.14 × r = 31.4

r = 5 cm

Area = 3.14 × 5 × 5 = 78.50 cm2

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APPEARS IN

NCERT Class 7 Maths
Chapter 11 Perimeter and Area
Exercise 11.3 | Q 12 | Page 224
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