Circumference 1.2 m. What is the length of the other circle, whose diameter is 2 times

Circumference 1.2 m. What is the length of the other circle, whose diameter is 2 times the diameter of the first circle?

The diameter and circumference of the small circle will be denoted by d and l, the large – D and L, respectively:

d = l / pi;

d = 1.2 / pi.

The diameter of the great circle is 2 times larger:

D = 2 x d;

D = 2 x 1.2 / pi;

D = 2.4 / pi.

The circumference of the great circle will be:

L = D x pi;

L = pi x 2.4 / pi;

L = 2.4 (m).

Answer: The circumference of a circle 2 times the diameter is 2.4 meters.



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