the diffrences of circumference of two concentric circles is 10radius find the the diffrence in radu of the two circles
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The answer is 5π
Let R1 and R2 be the radii of the two circles, and let C1 and C2 be their respective circumferences.
C1 = 2πR1 and C2 = 2πR2
Difference in circumferences is 10, which means
C2 - C1 = 10
10 = 2πR1 - 2πR2
10 = 2π(R1 - R2)
R1 - R2 = 5π
Step-by-step explanation:
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