Perimeter, area, circles, arcs and sectors

By the end you’ll be able to

• Calculate the perimeter and area of rectangles, triangles, parallelograms, trapezia and compound shapes
• Calculate the circumference and area of circles and semicircles, and give answers in terms of $\pi$ when asked
• Calculate arc lengths and sector areas using $\frac{\theta}{360}$ of the circle, and reverse the process to find an angle or radius (Higher)