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.

The length of a rectangle is 10 cm. If its perimeter is 28 cm, find the area

A boy 14 m tall, stood 10m away from a tree of height 12 m. Calculate, correct to the nearest degree, the angle of elevation of the top of the tree from the boy's eyes.