What is the radius of the circle with the given diameter $42$ cm?

21

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25

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32

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none of these

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Solution

The correct option is A $21$ cm
Given, the diameter of a circle $= 42 c m$ .

We know, the radius of the circle $= \frac{D i a m e t e r}{2}$ .

Then, the radius of the circle $= \frac{42 c m}{2} = 21 c m$ .

Hence, $A$ is correct.

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What is the radius of the circle with the given diameter 42 cm?

The correct option is A 21 cmGiven, the diameter of a circle =42cm. We know, the radius of the circle=Diameter2. Then, the radius of the circle=42cm2=21cm. Hence, A is correct.

What is the radius of the circle with the given diameter $42$ cm?

The correct option is A $21$ cm
Given, the diameter of a circle $= 42 c m$ .

We know, the radius of the circle $= \frac{D i a m e t e r}{2}$ .

Then, the radius of the circle $= \frac{42 c m}{2} = 21 c m$ .

Hence, $A$ is correct.