ok so you will first find the area of the circle by using Pie wich is /pi so /pi is 3.14. do 3.14 times the radius which is 5 because it is half of the diameter so multiply 3.14 by and then multiply that answer by 5 and there you have the area which is 78.5 and then you multiply that by the heigth and the heigth is 4 so then you multiply 78.5 by 4 and you will get 314.
So your answer is 314
