Question

In a circle length of a longest chord is 20cm , find length of a radius.
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Answer 1

Answer :-

• The length of the radius = 10 cm.

Given :-

• In a circle, the length of the longest chord is 20 cm.

To find :-

• The length of it's radius.

Step-by-step explanation :-

• In this question, the length of the longest chord of a circle has been given to us. We have to find the length of it's radius.

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• We know that the longest chord of a circle is it's diameter.

• Hence, 20 cm is the diameter of the circle. We have to find it's radius.

We know that :-

$\underline{\boxed{\sf Radius = \dfrac{Diameter}{2}}}$

Here,

• Diameter = 20 cm.

Hence,

$\tt Radius = \dfrac{20}{2}$

Dividing 20 by 2,

$\overline{\boxed{\tt Radius = 10 \: cm}}$

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• Hence, the radius of the circle is 10 cm.

Answer 2

Question :

In a circle length of a longest chord is 20cm , find length of a radius.

Answer :

• 10 cm.

Given :

• 20 cm.

To find :

• length of it's radius.

Diameter = 20 cm

$\tt Radius = \dfrac{20}{2}$

$\overline{\boxed{\tt Radius = 10 \: cm}}$

the radius of the circle is 10 cm.