Step-by-step explanation:
Hey, there!!
It's so simple, you just use the formula as given and put the values in it.
Radius of a circle (r) = 13 cm.
pi= 3.14
Now,
Circumference = 2× pi × r
= (2× 3.14 × 13) cm
= 81.64 cm
Therefore, the answer is 82 cm.
Hope it helps..
