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Pythagoras theorem

Stuck? Read the notes

	Answers
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Find the missing length of the triangles below. Don't forget the units in your answer.


1. Find the value of x in triangle ABC.
2. Find the value of y in triangle PQR.
3. Find the value of z in triangle XYZ.

A ladder is leaning against the wall. The foot of the ladder is 1 m from the wall and it reaches 11 m up the wall.

4. Find the length of the ladder (include units in your answer).

Find the missing value in the pythagorean triples below.

5. ?, 4, 5
6. 12, ?, 20
7. ?, 15, 17
8. 5, ?, 13