To Compare and Classify Isosceles and Scalene Triangles

In this lesson, we will revise the names of different types of triangles. We will look at what they have in common with each other and what makes them different. We will learn the properties of various types of triangles and use correct mathematical vocabulary to describe the features and properties of each. We will focus on scalene and isosceles triangles.

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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.All triangles have how many sides?

1/5

Q2.Angles in a triangle add up to how many degrees?

2/5

Q3.All sides in an equilateral triangle are?

3/5

Q4.In a right angled triangle, the side opposite the right angle is always _____________.

4/5

Q5.Triangles can have 2 parallel sides?

5/5

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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.All triangles have how many sides?

1/5

Q2.Angles in a triangle add up to how many degrees?

2/5

Q3.All sides in an equilateral triangle are?

3/5

Q4.In a right angled triangle, the side opposite the right angle is always _____________.

4/5

Q5.Triangles can have 2 parallel sides?

5/5

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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Plenary Quiz

What do you remember?

Q1.What kind of triangle has 3 identical sides?

1/6

Q2.Which type of triangle has no equal vertices?

2/6

Q3.What kind of triangle is this:

3/6

Q4.Which type of triangle has one angle that measures 90 degrees?

4/6

Q5.If one side of an equilateral triangle measures 9cm, what is it's perimeter?

5/6

Q6.Triangles have 3 equal length sides.

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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Plenary Quiz

What do you remember?

Q1.What kind of triangle has 3 identical sides?

1/6

Q2.Which type of triangle has no equal vertices?

2/6

Q3.What kind of triangle is this:

3/6

Q4.Which type of triangle has one angle that measures 90 degrees?

4/6

Q5.If one side of an equilateral triangle measures 9cm, what is it's perimeter?

5/6

Q6.Triangles have 3 equal length sides.

6/6

Lesson summary: To Compare and Classify Isosceles and Scalene Triangles

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