# Find the length of the hypotenuse

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## Lesson details

### Key learning points

1. In this lesson, Pythagoras' Theorem will be applied to find the hypotenuse of a right-angled triangle.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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## Worksheet

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## Starter quiz

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### 4 Questions

Q1.
Which side is the hypotenuse?
A
Correct answer: B
C
Q2.
Which side is the hypotenuse?
Correct answer: A
B
C
Q3.
Which side is the hypotenuse?
A
Correct answer: B
C
Q4.
Which is the correct formulae for Pythagoras’ theorem?
A
B
Correct answer: C

## Exit quiz

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### 4 Questions

Q1.
Calculate the length of the hypotenuse.
Correct answer: 15 cm
21 cm
225 cm
Q2.
Calculate the length of the hypotenuse, correct to 1 decimal place.
14.7 cm
Correct answer: 22.5 cm
26 cm
5.6 cm
Q3.
Calculate the length of the hypotenuse, correct to 3 significant figures.
Correct answer: 2.42 m
2.93 m
3.3 m
5.85 m
Q4.
Calculate the length of the hypotenuse, correct to 2 decimal places.
1.87 cm
1.96 cm
Correct answer: 2.59 cm
23.03 cm