In the diagram, ∠POQ = 150 and the radius of the circle PSQR is 4.2cm. [take π = 22/7]

What is the length of the minor arc?

Find the area of the sector OPSQ

A ladder 6m long leans against a vertical wall at an angle 53º to the horizontal. How high up the wall does the ladder reach?

A cylinder, opened at one end, has a radius of 3.5cm and height 8cm. calculate the total surface area

In the diagram, ∠ZWZY and WYX are right angles. Find the perimeter of WXYZ.