The area of a circle is the amount of two-dimensional space enclosed by its circumference. The area of a circle is calculated using the formula: 𝐴 = 𝜋𝑟² The area of a sector is the two-dimensional ...

The circumference of a circle is the distance around the shape. The ability to round a number to a number of decimal places or to a number of significant figures means that answers can be written to ...