Question

The ratio of radius to diameter of a circle is ______.​

Answer 1

Answer:

ratio =radius /diameter

radius =d/2

diameter =2*radius=2*r

d/2/2*r=d/4r

Answer 2

Ratio of radius to diameter of a circle is 1 : 2

Given :

The radius and diameter of a circle

To find :

The ratio of radius to diameter of a circle

Solution :

Step 1 of 2 :

Find radius and diameter of a circle

Let radius of a circle = r unit

Since diameter is twice of the radius

So diameter of the circle = 2r unit

Step 2 of 2 :

Find the ratio

The ratio of radius to diameter of a circle

= r : 2r

= 1 : 2

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