Question

the circumference and area of a circle are numerically equal then the diameter of a circle is​

Answer 1

Answer:

4 unit .

Step-by-step explanation:

Let radius of circle be r units.

Given :

Circumference of circle = Area of circle .

2 π r = π r²

2 r = r²

r = 2.

We know diameter of circle = 2 r

Hence diameter of circle = 4 unit.

Answer 2

The radius of a circle is 'r' and it's diameter is 'd' and here is the complete answer of your question:-

Circumference = Area

2πr = πr²

2r = r²

2×r = r×r

2 units = radius

Diameter (d) = 2r

= 2×2

= 4 units