Question

How to find the circumference if radius of the cirle is 28cm

Answer 1

Answer:

the formula of cercumfrence =2piiR

Step-by-step explanation:

r=28

=2*3.14*28

=175.84

Answer 2

Answer:

As, the circumference of any circle with radius 'r' is given by : 2πr

Therefore, the circumference of the circle with radius r= '28cm' is equal to;

$circumference = 2\pi \: r$

$= 2 \times \frac{22}{7} \times 28$

$= 2 \times 22 \times 4$

$= 44 \times 4$

.

And, Therefore:

$circumference = 176 \: cm$