Math Practice 101
Homework Explained - Math Practice 101

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Grade 3 Go Math Practice - Answer Keys
Common Core


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Lesson 11.7

Use the rectangles for 1–2.

  • Question 1 (request help)

    How do the length and width change from Rectangle A to Rectangle B?
  • Type below:
  • Question 2 (request help)

    How do the areas change from Rectangle A to Rectangle B to Rectangle C?
  • Rectangle A:     sq. ft.
    Rectangle B:     sq. ft.
    Rectangle C:     sq. ft.

Lesson 11.8

Draw a line to break apart the shape into rectangles.
Find the area of the shape.

Lessons 11.9–11.10

Find the perimeter and area of each rectangle.
Use your results to answer questions 5–6.

  • Question 5 (request help)

    Which two rectangles have the same perimeter?
  • Rectangles    and
    		   
  • Question 6 (request help)

    Which two rectangles have the same area?
  • Rectangles   and
    		   

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