The area of a circle is equal to the sum of the area of two circles. If the radii of two circles are 24cm and 7cm .find the diameter of the bigger circle.
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Answer:
A = a1 + a2
πR² = π(r1)² + π(r2)²
πR² = π [r1² +r2²]
R² = r1² + r2²
R² = 24² + 7²
R² = 625
R = √625
R = 25
Diameter = 2R = 50 cm
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