Revisiting area: Working out side lengths when given area

In this lesson, we will be looking at working out side lengths of various quadrilaterals and triangles when only given the area and 1 other measure of a shape.

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 of the following is larger than the area of a circle with a radius of 3cm?

1/5

Q2.Which of the following is larger than the area of a circle with a radius of 2cm?

2/5

Q3.Which of the following is smaller than the area of a circle with a radius of 4cm?

3/5

Q4.True or false: A circle with a radius of 1cm has a larger area than a rectangle with a base of 1cm and a height of 3cm.

4/5

Q5.True or false: A circle with a radius of 2cm has a larger area than a rectangle with a base of 2cm and a height of 6cm.

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.Which of the following is larger than the area of a circle with a radius of 3cm?

1/5

Q2.Which of the following is larger than the area of a circle with a radius of 2cm?

2/5

Q3.Which of the following is smaller than the area of a circle with a radius of 4cm?

3/5

Q4.True or false: A circle with a radius of 1cm has a larger area than a rectangle with a base of 1cm and a height of 3cm.

4/5

Q5.True or false: A circle with a radius of 2cm has a larger area than a rectangle with a base of 2cm and a height of 6cm.

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:

Revisiting Area - Working Out Side Lengths Quiz

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

Q1.What is the height of a triangle with an area of 24 and a base of 8?

1/5

Q2.What is the base of a parallelogram with an area of 24 and a height of 3?

2/5

Q3.What is the height of a triangle with an area of 55 and a base of 11?

3/5

Q4.This trapezium has an area of 25. Given that a=6 and b=4. Work out the height of the trapezium.

4/5

Q5.This trapezium has an area of 30. Given that a=7 and h = 4. Work out the length of b.

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:

Revisiting Area - Working Out Side Lengths Quiz

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

Q1.What is the height of a triangle with an area of 24 and a base of 8?

1/5

Q2.What is the base of a parallelogram with an area of 24 and a height of 3?

2/5

Q3.What is the height of a triangle with an area of 55 and a base of 11?

3/5

Q4.This trapezium has an area of 25. Given that a=6 and b=4. Work out the height of the trapezium.

4/5

Q5.This trapezium has an area of 30. Given that a=7 and h = 4. Work out the length of b.

5/5

Lesson summary: Revisiting area: Working out side lengths when given area

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Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Dance

This was the final lesson in the unit Area review.

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