What should be the radius of a circle so that its length is equal to the sum of the lengths

univerkov | February 28, 2021 | education

What should be the radius of a circle so that its length is equal to the sum of the lengths of two circles, with a radius of 11 and a radius of 47cm.

Let’s write a mathematical expression that will determine the length of a circle, the radius of which, according to the condition of the task, is 11 centimeters:

2 * 3.14 * 11.

Let’s write a mathematical expression that will determine the length of a circle, the radius of which, according to the condition of the task, is 47 centimeters:

2 * 3.14 * 47.

Let’s write a mathematical expression that will determine our circumference:

2 * 3.14 * 11 + 2 * 3.14 * 47 = 2 * 3.14 (11+ 47) = 2 * 3.14 * 58.

As we can see, the radius is 58.

Answer: 58 cm.

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