Finding Missing Sides Worksheet

Grade 6 math worksheet to practice finding missing sides of various geometric shapes given perimeter or area.

Grade 6 Math GeometryFinding Missing Sides

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Includes

3 Short AnswerFill in the BlanksMultiple Choice

Standards

CCSS.MATH.CONTENT.6.G.A.1CCSS.MATH.CONTENT.6.G.A.3

Topics

mathgeometrymissing sidesperimeterareagrade 6

7 sections · Free to use · Printable

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Finding Missing Sides

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Read each question carefully and find the missing side length for each shape. Show your work.

1. A rectangle has a perimeter of 36 cm. If its length is 10 cm, what is its width?

2. The area of a rectangle is 48 square meters. If the width is 6 meters, what is the length?

3. A square has a perimeter of 44 inches. What is the length of one side?

4. The area of a square is 81 square feet. What is the length of one side?

5. A triangle has a perimeter of 25 cm. If two of its sides measure 8 cm and 9 cm, the third side measures cm.

6. An equilateral triangle has a perimeter of 27 inches. Each side measures inches.

7. A rectangular garden has an area of 72 square feet. If the length is 9 feet, what is the width?

6 feet

7 feet

8 feet

9 feet

8. The perimeter of a regular pentagon is 40 cm. What is the length of one side?

5 cm

8 cm

10 cm

40 cm

9. A rectangular swimming pool has a perimeter of 50 meters. If the length is 15 meters, what is the width? Draw a diagram of the pool and label all sides.