Areas related to Circles ncert solutions Chapter 12 Exercise 12.1 Question 2
2. The radii of two circles are 8 cm and 6 cm respectively. Find the radius of the circle having area equal to the sum of the areas of the two circles.
Solution:
r1 = 8 cm
r2 = 6 cm
Area of first circle =
Area of second circle =
Sum of areas of two circles =
We want to find radius of circle having area equal to
Therefore,
cm
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