Mrs. Post wants to surprise Frisbee with a new backyard to play in! She needs to build a fence and buy some grass. Help her figure out how much fencing and grass she needs, and help calculate how much ...

Problem situations in perimeter and area at this level will include calculations involving a circle or part of a circle. The window at the top of a door is in the shape of a semicircle. The door is ...

When working with circles it is important to know the following definitions: The radius (r) of a circle is the distance from the centre to the outside of the circle. The diameter (d) of the circle ...