Diameter of 3 concentric circles are in ratio 1:2:3 find ratio of their area
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Let the common multiple be x so that radius of circles can be x, 2x, 3x units respectively.
Ratio of their areas =
π*x²:π(2x)²:π(3x)²
Ratio=
x² : 4x² : 9x²
Ratio = 1:4:9
Ratio of their areas =
π*x²:π(2x)²:π(3x)²
Ratio=
x² : 4x² : 9x²
Ratio = 1:4:9
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Answer: @strangerZen
how did you change the diameter into radius without changing anything
Step-by-step explanation:
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