What will be the diameter of a circle whose radius is 15 cm -A- 10 cmB- 30 cmC- 45 cmD- 15 cm

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Byju's Answer

Standard IX

Mathematics

Diameter

What will be ...

Question

What will be the diameter of a circle whose radius is 15 cm?

10 cm

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30 cm

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45 cm

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15 cm

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Solution

The correct option is B
30 cm

Given that

The radius of a circle = 15 cm

The diameter of a circle = radius $\times$ 2

On substituting the values we get;

The diameter of the circle = 15 $\times$ 2 = 30 cm

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What will be the diameter of a circle whose radius is 15 cm?

The correct option is B 30 cm Given that The radius of a circle = 15 cm The diameter of a circle = radius × 2 On substituting the values we get; The diameter of the circle = 15 × 2 = 30 cm

The correct option is B
30 cm

Given that

The radius of a circle = 15 cm

The diameter of a circle = radius $\times$ 2

On substituting the values we get;

The diameter of the circle = 15 $\times$ 2 = 30 cm