Question

find the radius of the circle whose diameter is 15 cm​

Answer 1

Radius of circle = diameter \ 2

Then, 15\ 2 = 7.5 cm.

Hence, radius of circle is 7.2 cm.

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Answer 2

Given : The circle whose diameter is 15 cm

To find : The radius of the circle.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the radius of the given circle)

Here, we will be using the mathematical relationship between the diameter and radius of a circle. Which is -

Diameter = 2 × Radius

By, putting the available data in the above mentioned mathematical relationship, we get :

15 = 2 × Radius

or, Radius = 15/2

or, Radius = 7.5 cm

(This will be considered as the final result.)

Hence, the radius of the circle is 7.5 cm