First, find the area of both circular sides: Area = pi x radius^2 Area = pi x (4.5/2)^2 Area = 15.904....
There are two sides, so times the area of the circle by 2. 15.904... x 2 = 31.808....
Afterwards, find the area of the outside circular part.
You use the formula to find the circumference of the circle as that is just the outside length of the circle. Circumference = pi x diameter C = pi x 4.5 C = 4.5pi
Afterwards, times the circumference by the 2cm length. 4.5pi x 2 = 9pi
Then, add up all the area. 31.808 + 9pi = 60.082... approx, where this answer is closest to the last answer.
