Problema Solution
batman and robin each order a pizza. the circumference of batmans pizza is percent greater than the circumference of robins pizza. the area of batmans pizza is what percentage greater than the area of robins pizza?
Answer provided by our tutors
We assume the circumference of batmans pizza is X percent greater than the circumference of robins pizza.
X is not given
Because circumference = 2*pi*R
Area = pi*R^2
So
C1 = (1+x)*C2
S1 = (1+x)^2 *S2
[(1+x)^2 -1]
So
the area of batmans pizza is [(1+x)^2 -1] percentage greater than the area of robins pizza