Question

an arc of length 220cm of a circle makes an angle 60° at the centre.find the radius of the circle. with diagram​

Answer 1

This is the answer of your question

Answer 2

The radius of the circle is 210 cm

Step-by-step explanation:

Arc length = $\frac{\theta}{360} \times 2 \pi r$

We are given that an arc of length 220cm of a circle makes an angle 60° at the centre

$220=\frac{60}{360} \times 2 \times \frac{22}{7} \times r$

$\frac{220 \times 360 \times 7}{60 \times 2 \times 22}=r$

$210=r$

Hence the radius of the circle is 210 cm

#Learn more :

An arc of length 121 cm makes an angle 77° at the center of a circle. The radius of the circle is ?

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