Save guides, add subjects and pick up where you left off with your BBC account. The circumference of a circle = \(\pi d\) or \(2\pi r\). Look at the sector of the circle shown below. To calculate ...

Practice circle geometry ahead of your National 5 Maths exam with this interactive maths quiz. Looking for more on circle geometry? Check out our National 5 Maths guide. National 5 Maths circle ...

The activities focus on spatial reasoning and geometry, which are often taught during the last few months of the school year, and which provide important foundations for mathematics reasoning more ...