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Unit 4 - Lesson 15 - Grade 5: Illustrative Mathematics

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Grade 5 Unit 4
Lesson 15: Find Missing Side Lengths
CC BY 2021 Illustrative Mathematics®
Grade 5 Unit 4
Lesson 15: Find Missing Side Lengths
CC BY 2021 Illustrative Mathematics®
Lesson: Find Missing Side Lengths

Estimation Exploration: The Garden (Warm Up)

What is the area of one of the large rectangles in the garden?

Record an estimate that is:

Find the Missing Side Length, Part 1

Complete the table.

Find the Missing Side Length, Part 2

Complete the table.

Clare wants to find the height of a rectangular prism with the following measurements:

First, Clare finds the quotient of

What could she do next to find the height?

Find the missing height to finish the problem for Clare.

Complete the table.

Cool Down: The Area of the Garden

The area of a rectangular garden is 832 square feet and its length is 16 feet. What is its width?