3rd grade geometry

Question 1

A rectangle has a perimeter of 32 m. Its length is 9 m. What is its width, in m?

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Question 2

How many degrees is a full turn?

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Question 3

A shape with 6 sides has a perimeter of 61 cm. The known sides are 12 cm, 4 cm, 13 cm, 13 cm, 12 cm. How long is the missing side?

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Question 4

True or false? Every rectangle is a parallelogram.

• A. True
• B. False

Question 5

A rectangle is 12 ft long and 7 ft wide. What is its area in ft²?

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Question 6

Two rectangles both have a perimeter of 24 cm. One is 2 cm by 10 cm, the other is 6 cm by 6 cm. What is the difference between their areas, in cm²?

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Question 7

An L-shape is made by cutting a 3 m by 5 m rectangle from the corner of a 6 m by 10 m rectangle. What is the area of the L-shape, in m²?

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Question 8

Sam wants a rectangular vegetable patch with an area of 12 m². It must be 4 m wide. How long must it be?

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Question 9

A rectangle has an area of 36 cm². One side is 6 cm. How long is the other side, in cm?

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Question 10

A garden is made of two rectangles: 5 yd × 4 yd and 4 yd × 3 yd. What is the total area, in yd²?

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Question 11

How many right angles does an equilateral triangle have?

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Question 12

What is the perimeter of a rectangle 10 ft by 11 ft, in ft?

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Question 13

A rectangle has an area of 45 m². One side is 5 m. How long is the other side?

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Question 14

The clock shows 5:00. Is the smaller angle between the hands less than, equal to, or greater than a right angle?

• A. less than a right angle
• B. a right angle
• C. greater than a right angle

Question 15

Each small square is 1 square unit. A rectangle has 6 rows of 3 squares. What is its area, in square units?

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Question 16

A square has a perimeter of 80 m. How long is each side?

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