The ratio of radius of two circles is 2 : 3.Find the ratio of their areas
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The ratio of radius of two circles is 2 : 3.
r/R = 2/3
Ratio of Area = πr²/πR² = r²/R² = 4/9.
The ratio of the areas of two circles is 4:9
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Answer:
4:9
Step-by-step explanation:
ratio of r is 2:3
suppose r1 = 2x and r2=3x
ratio of area is= π(2x)²:π(3x)²
=>4x²:9x² =>4:9
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