Pythagoras: Finding right-angled triangles

In this lesson, you will learn how to use Pythagoras's theorem to find the height of triangles.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which side the the hypotenuse of the below triangle?

1/6

Q2.The digram shows a right-angled triangle. Which of the statements is correct?

2/6

Q3.Which equation does NOT relate to the triangle show below?

3/6

Q4.Work out the length of the hypotenuse of the triangle shown below.

4/6

Q5.Find the length of the missing side of the right-angled triangle.

5/6

Q6.Use Pythagoras’ Theorem to determine which of the sets of numbers below are Pythagorean triples:

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which side the the hypotenuse of the below triangle?

1/6

Q2.The digram shows a right-angled triangle. Which of the statements is correct?

2/6

Q3.Which equation does NOT relate to the triangle show below?

3/6

Q4.Work out the length of the hypotenuse of the triangle shown below.

4/6

Q5.Find the length of the missing side of the right-angled triangle.

5/6

Q6.Use Pythagoras’ Theorem to determine which of the sets of numbers below are Pythagorean triples:

6/6

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Finding right-angled triangles

Exit Quiz

Q1.Which side the the hypotenuse of the below triangle?

1/7

Q2.The digram shows a right-angled triangle. What is the length of the hypotenuse?

2/7

Q3.The right-angled triangle ABC has short sides of length 8 cm and 4 cm. Find the length of AC.

3/7

Q4.Use Pythagoras’ Theorem to determine which of the sets of numbers below are Pythagorean triples:

4/7

Q5.Sandra tried to calculate the unknown length. What mistake has she made in Step 1?

5/7

Q6.Sandra tried to calculate the unknown length. What mistake has she made in Step 2?

6/7

Q7.What do you need to do in order to find the area of the triangle shown below.

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Finding right-angled triangles

Exit Quiz

Q1.Which side the the hypotenuse of the below triangle?

1/7

Q2.The digram shows a right-angled triangle. What is the length of the hypotenuse?

2/7

Q3.The right-angled triangle ABC has short sides of length 8 cm and 4 cm. Find the length of AC.

3/7

Q4.Use Pythagoras’ Theorem to determine which of the sets of numbers below are Pythagorean triples:

4/7

Q5.Sandra tried to calculate the unknown length. What mistake has she made in Step 1?

5/7

Q6.Sandra tried to calculate the unknown length. What mistake has she made in Step 2?

6/7

Q7.What do you need to do in order to find the area of the triangle shown below.

7/7

Lesson summary: Pythagoras: Finding right-angled triangles

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