Unit 4, Lesson 14, Grade 3 icon
Unit 4, Lesson 14

Find areas by decomposing into rectangles or completing composite figures to form rectangles

EngageNY 60 min(s)

In this lesson, students choose one of the methods from the previous lesson to find the areas of composite shapes. They also solve word problems involving composite shapes. (For example, "Fanny has a piece of fabric 8 feet long and 5 feet wide. She cuts out a rectangular piece that measures 3 feet by 2 feet. How many square feet of fabric does Fanny have left?")

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