Question

The circumference of the circle is approx. 3 times its diameter. Whose radius is 20 cm? Find the circumference

Answer 1

Answer:

The answer of this question is 120 cm.

circumference = 2R × 3

= 6R

= 6×20 = 120 cm

Answer 2

Answer:

Circumference of circle is 120cm

Step-by-step explanation:

Given that

Radius of circle is 20cm

To find

Circumference of circle

Solution

As we know that diameter of circle is always double of its radius hence

$diameter \: of \: circle = 2 \times 20$

by multiplication we get

$diameter \: of \: circle = 40cm$

As per given condition circumference of circle is 3 times of diameter hence

$circumference \: of \: circle = 3 \times 40$

by multiplication we get

$cirumferene \: of \: circle = 120cm$