Question

A farmer wants to make a poll for his ducks with circumference of 45m. what is the area of the pool?

Answer 1

circumference = diameter * π
45 m = diameter * 3,14
diameter = 45m : 3,14
diameter = 14,33 m

area = (radium)²  * π
radium = diameter : 2
radium = 14,33 : 2
radium = 7,16 m
area = (7,16m)² * 3,14
area = 161,22 m²

saludos