Use Pythagoras' Theorem with Isosceles Triangles

Use Pythagoras' Theorem with Isosceles Triangles

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Lesson details

Key learning points

  1. In this lesson, we will learn how to apply Pythagoras' Theorem to isosceles triangles to find missing side lengths or angles.

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4 Questions

Q1.
Find the distance between (0, 0) and (5, 12).
10.9
Correct answer: 13
17
7
Q2.
Find the distance between the points (1, 3) and (6, 2).
4
4.9
Correct answer: 5.1
6
Q3.
Find the distance between the points (4, 3) and (-3, -4).
1.41
14
7
Correct answer: 9.9
Q4.
Find the distance between the points (-7, -3) and (5, -11).
Correct answer: 14.4
2
20
8.94

3 Questions

Q1.
Find the length labelled x.
An image in a quiz
Correct answer: 12 cm
17.5 cm
23.43 cm
9.95 cm
Q2.
Find the length labelled x.
An image in a quiz
Correct answer: 25 cm
37.1 cm
42.7 cm
5 cm
Q3.
Find the area of the triangle.
An image in a quiz
1536 m²
384 m²
480 m²
Correct answer: 768 m²

Lesson appears in

UnitMaths / Pythagoras Theorem 2