Grade 3 Go Math Practice - Answer Keys Answer keys Chapter 11: Mid -Chapter Checkpoint

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Grade 3 Go Math Practice - Answer Keys

Chapter 11: Mid -Chapter Checkpoint

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Question 9 (request help)
Ramona is making a lid for her rectangular jewelry box. The jewelry box has side lengths of 6 centimeters and 4 centimeters. What is the area of the lid Ramona is making?

square centimeters

Question 10 (request help)
Adrienne is decorating a square picture frame. She glued 36 inches of ribbon around the edge of the frame. What is the length of each side of the picture frame?

\(a=\)

inches

Question 11 (request help)
Margo will sweep a room. A diagram of the floor that she needs to sweep is shown at the right. What is the area of the floor?

square units

Question 12 (request help)
Jeff is making a poster for a car wash for the Campout Club. What is the perimeter of the poster?

feet

Question 13 (request help)
A rectangle has two side lengths of 8 inches and two side lengths of 10 inches. What is the perimeter of the rectangle? What is the area of the rectangle?

	Perimeter		inches
	Area =		square inches