What will be the radius of a circle whose diameter is 20 cm -A- 10 cmB- 40 cmC- 20 cmD- 60 cm

The correct option is A 10 cmGiven that The diameter of a circle = 20 cm The radius of a circle = Diameter/2 On substituting the values we get: The radius of t ...

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Standard IV

Mathematics

Radius of a Circle

What will be ...

Question

What will be the radius of a circle whose diameter is 20 cm?

10 cm

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40 cm

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20 cm

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60 cm

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Solution

The correct option is A: $10 c m$
Given that

The diameter of a circle $= 20 c m$

The radius of a circle $= \frac{D i a m e t e r}{2}$

On substituting the values, we get

The radius of the circle $= \frac{20}{2} = 10 c m$

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What will be the radius of a circle whose diameter is 20 cm?

The correct option is A: 10 cmGiven that The diameter of a circle =20 cm The radius of a circle =Diameter2 On substituting the values, we get The radius of the circle =202=10 cm

The correct option is A: $10 c m$
Given that

The diameter of a circle $= 20 c m$

The radius of a circle $= \frac{D i a m e t e r}{2}$

On substituting the values, we get

The radius of the circle $= \frac{20}{2} = 10 c m$