Find the perimeter of the major sector.

Find the radius of the following circle. Give your answers to $3$ significant figures.

Find the radius of the following circle. Give your answers to $3$ significant figures.

Find the perimeter of the major sector.

Find the area of the minor sector.

Ellie plans to make a paper cone from a sector of a circle with angle $220°$. What size circle does she need to start with to make a cone with curved surface area $120{ \mathrm{cm}}^2$ ?

Find the length of chord $KM$. [Enter the value excluding units]

Find the length of chord $PQ$.

Find the arc length of sector $DC$.