Math, asked by khankarim3006, 8 months ago

An arc of length 20π cm subtends an angle of 144° at the centre of a circle. Find the radius of the circle.

Answers

Answered by pratham280604

4

Answer:

r=25cm

Step-by-step explanation:

length of arc= Ф/180 ×πr=20π

144/180 ×r = 20

4/5 ×r=20

r=25cm

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