Math, asked by ashutoshbajpai4049, 1 day ago

The circumference of a circle is 40 cm more than its diameter. Calculate the radius of the circle.
why we use 2piR–2Rx1 = 40​

Answers

Answered by HumairaSultana
0

Step-by-step explanation:

because area of circumference of circles formula is 2πr

diameter=2×radius

since we use 2πr-2r=40

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