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Back to Exercise: Apply the area and perimeter formulas for rectangles in real world and mathematical problems

Exercises: Applying Area and Perimeter Formulas for Rectangles

Work through each section in order. Before computing, decide whether a problem asks
for area or perimeter, and label every answer with the correct kind of unit.

Grade 4·21 problems·~28 min·Common Core Math - Grade 4·standard·4-md-a-3
Work through problems with immediate feedback
A

Recall / Warm-Up

These problems review skills from earlier grades that this lesson depends on.

1.

A rectangle is covered by unit squares arranged in 5 rows of 4 squares each. How many square units cover the rectangle?

2.

What number makes this true:   ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲   x 6 = 42?

3.

A shape has four sides with lengths 8, 3, 8, and 3. What is the total distance around the shape?

B

Fluency Practice

1.

A rectangular poster is 9 inches long and 6 inches wide. What is its area, in square inches?

2.

A rectangular rug is 12 feet long and 8 feet wide. What is its area, in square feet?

3.

A rectangular room has a floor area of 63 square feet. The length is 9 feet. What is the width, in feet?

4.

A rectangular banner has an area of 216 square inches. The width is 12 inches. What is the length, in inches?

5.

A table is 4 feet wide. Its area is 28 square feet. What is the length of the table, in feet?

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