(Give all answers correct to 2 significant figures)
1. Find the lengths of the sides marked by letters:


(b) 
(e)

(c) 
(f)

2. State whether the following triangles are rightangled:
(a) 
(b) 
(c) 
3. A ladder 20 m long is placed 5 m from the base of a wall. Sketch a diagram to show this.
How far up the wall will the ladder reach?
4. A power pole is 25 m high. It is held by wires that are connected to the top of the pole and are anchored to the ground 10 m from its base. How long are the wires?
5. A girl stands in one corner of a rectangular paddock that is 100 m long and 60 m wide. She runs diagonally across the paddock to the opposite corner. How far does she run?