-
The radii of two circles are 10 cm and 24 cm. The radius of a circle whose area is the sum of the area of these two circles is
-
- 36 cm
- 17 cm
- 34 cm
- 26 cm
- 36 cm
Correct Option: D
Using Rule 14,
Let the required radius = r cm, then
πr² = πr1² + πr2²
→ r² = r1² + r2²
= 10² + 24²
= 100 + 576 = 676
⇒ r = 676 = 26 cm
