In the diagram, PQRS is a circle. find the value of x.

A cone has a base radius of 8cm and height 11cm. calculate , correct to 2d.p, the curved surface area

Given that sin x = 3/5, 0 ≤ x ≤ 90, evaluate (tanx + 2cosx)

In the diagram, line \(\overline{EC}\) is a diameter of the circle ABCDE.

If angle ABC equals 158°, find ∠ADE

the table shows the height of 37 players of a basketball team calculates correct to one decimal place the mean height of the players.