The Basics
What is area?
How many square units a figure takes up.
What is the circumference of a circle with a radius of 2?
12.56
What is the area of a circle with a radius of 4cm?
50.24
What is the Circumference of a semi-circle with the diameter of 8in?
12.56
What is the diameter of a circle with a circumference of 28.26
9
What is the radius of a circle with the area of 78.5
5