Building shapes from triangles (Part 2)

In this lesson, you will learn how to arrange triangles to form polygons (part II).

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.Each angle in an equilateral triangle is...

1/5

Q2.Which of the following statements most accurately describes an 'acute angle'?

2/5

Q3.The total interior angles in a quadrilateral sum to...

3/5

Q4.If I wanted to describe a regular triangle, it would be better to say which of the following?

4/5

Q5.If you were to have 6 separate equilateral triangles , what would the total interior angles of all the triangles sum to?

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.

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.Each angle in an equilateral triangle is...

1/5

Q2.Which of the following statements most accurately describes an 'acute angle'?

2/5

Q3.The total interior angles in a quadrilateral sum to...

3/5

Q4.If I wanted to describe a regular triangle, it would be better to say which of the following?

4/5

Q5.If you were to have 6 separate equilateral triangles , what would the total interior angles of all the triangles sum to?

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.

Quiz:

Building shapes from triangles (Part II)

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.ABCD forms a quadrilateral. What are the total interior angles of the quadrilateral?

1/5

Q2.Angle ABC is 98 degrees. What would the size of the reflex angle formed be on the exterior?

2/5

Q3.If I combined two equilateral triangles together with a shared side, what would the shape formed be called?

3/5

Q4.Which of the following is not a rule used so far for angles?

4/5

Q5.If A + B + C = 180, D + E = 180 and F is a right angle, what does A + B + C + D + E + F equal?

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.

Quiz:

Building shapes from triangles (Part II)

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.ABCD forms a quadrilateral. What are the total interior angles of the quadrilateral?

1/5

Q2.Angle ABC is 98 degrees. What would the size of the reflex angle formed be on the exterior?

2/5

Q3.If I combined two equilateral triangles together with a shared side, what would the shape formed be called?

3/5

Q4.Which of the following is not a rule used so far for angles?

4/5

Q5.If A + B + C = 180, D + E = 180 and F is a right angle, what does A + B + C + D + E + F equal?

5/5

Lesson summary: Building shapes from triangles (Part 2)

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