Problem 1:A semi-circular garden has a radius of 10 meters. What is its area? ( Use pi =3.14)
Answer:157m^2
Problem 2:The base of a cylindrical tank has a radius of 4.5 meters. What is its area? ( Use pi=3.14)
Answer:65.585m^2
Problem 3:In the middle of a field a huge circle is cut out with a radius of 60 meters. What is the circumference of the circle? ( Use pi=3.14)
Answer:376.8m^2
Problem 4:A circular stadium has a diameter of 140 meter. What is its circumference?(Use pi=3.14)
Answer:439.6m
Problem 5:The side of a building is in the shape of a trapezoid. If the two parallel edges are 90m and 120m, and the height is 45m, what is the area of the trapezoid.
Answer:4725m^2
Problem 6:A rectangular football field with a length if 40m has a perimeter of 120m. What is the area of the field?
Answer:900m^2
Please check this it took me a long time thank you!
All are right except for 6.
I got something wrong ( it doesnt tell you which one's.)
Your answer for number 6 is wrong.
What did you get for the width?
Which width?
The width of the rectangular football field.
20
Yes, the width is 20 m and the length is 40 m.
Area = length times width
A = 40 * 20
A = ________ square meters