Converting between radius and diameter Worksheet

6 problems

A circle consists of various different parts. Radius and diameter are two of them. The radius of a circle is the distance from the center of the circle to any particular point. It is represented using ‘r’. The diameter is a straight line that passes through the center of the circle. It is represented using ‘d’.

Grade 7

Teaching Converting between radius and diameter easily 


  • Firstly, write down the length of radius and diameter. 


  • Secondly, use the radius or diameter formula to get an appropriate result. 


  • Always write the same units. 

Here is an example to solve a question on converting radius to diameter. Let’s look at the given example mentioned below to understand the conversion of radius to diameter easily. 

                                    Radius to diameter = 2r. 

                                     Diameter to radius = d/2. 



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