Irregular Composite Area and Perimeter

Composite Area Practice

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Categorize

Options (6)

Sort these figures into the right categories

Regular Shapes

Irregular/Composite Shapes

What would the area of this figure be? How do you know?

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Multiple Choice

What is the area of the figure?

• 18 square units

• 20 square units

• 14 square units

What could be a good place to split this figure?

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Multiple Select

What would be a good place to split the figure in order to find the area?

Now, I am going to take the unit squares away from this picture. Before I do, let's talk about what labels there would be.

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How will we figure out the length of the missing side???

Let's discuss

Look at this image, we can see how to calculate the length of the missing side.

Multiple Choice

What is the length of the missing side?

• 2 cm

• 8 cm

• 5 cm

• 3 cm

How will we figure out the length of the missing side???

Let's discuss

Look at this image, we can see how to calculate the length of the missing side.

Multiple Choice

What is the length of the missing side?

• 2 cm

• 8 cm

• 5 cm

• 3 cm

Let's Compare

Now that we have practiced finding missing side lengths, let's confirm our thinking by comparing to the model with the unit squares.

Stretch Break!!!

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Let's practice!

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