Question

Find the circumference of a circle whose radius is 2.8m
Plz break it down for me

Answer 1

circumference of a circle = 2piR

i. e circumference = 2× 22/7×2.8

= 17.58

Answer 2

Circumference=(2×22/7×2.8)m^2

=17.6 m^2

Here 22/7 is the approx. value of pi and 2.8 cm is the radius of the circle. The formula for circumference is

Circumference=2×pi×r

pi can be taken 22/7 or 3.14 depending on what you find easy and what is given in the problem.