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NCERT Solutions Class 10 Mathematics Solutions for Areas Related to Circles - Exercise 12.1 in Chapter 12 - Areas Related to Circles

Question 4 Areas Related to Circles - Exercise 12.1

If the perimeter and the area of a circle are numerically equal, then the radius of the circle is

Answer:

Since the perimeter of the circle = area of the circle,

2πr = πr2

Or, r = 2

So, option (A) is correct i.e. the radius of the circle is 2 units.

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