Problema Solution
How much fencing is required to enclose a circular garden whose radius is 20 meters? Express the required calculation in terms of pi, and then round to the nearest tenth.
Answer provided by our tutors
the amount of fencing will be the length of the circumference of the circle
the circumference of the circle with a radius r = 20 m is
C = 2*r*pi
C = 2*20*pi
C = 40pi m
pi = 3.14.159
C = 40*3.14.159
C = 125.66 m
we need 40pi meters or 125.66 meters to fence the garden.