Are you looking for some tough math problems to practice before your next exam? Well, you've come to the right place. Math riddles are great because they require students to apply their knowledge in ...

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 ...

The circumference is the perimeter of a circle. It is a length and so is measured in \(mm\), \(cm\), \(m\) or \(km\). An area is measured in square units: \(mm^{2 ...

The radius of a circle or a sphere is the distance between the center and the edge. The radius can be used to calculate a circle's diameter, area and circumference. Likewise, a sphere's volume is ...