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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) - CBSE Class 7 - Mathematics

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Question

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

Solution

Circumference = 2πr = 31.4 cm

2 × 3.14 × r = 31.4

r = 5 cm

Area = 3.14 × 5 × 5 = 78.50 cm2

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics for Class 7 (2018 to Current)
Chapter 11: Perimeter and Area
Ex. 11.30 | Q: 12 | Page no. 224
Solution The Circumference of a Circle is 31.4 Cm. Find the Radius and the Area of the Circle? (Take π = 3.14) Concept: Circle - Area of Circle.
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