Area Flashcard - 3rd Grade

Front

What is area?

Back

Area is the amount of space inside a shape, measured in square units.

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

What is the area of a rectangle with a length of 5 cm and a width of 3 cm?

Back

15 square cm.

Front

If a rectangle has an area of 20 square feet and a width of 4 feet, what is its length?

Back

5 feet.

Front

What is the area of a square with sides of 4 cm?

Back

16 square cm.

Front

What happens to the area if you double the length of a rectangle?

Back

The area also doubles.

Front

What is the total area of a model with 3 rows and 4 columns?

Back

12 square units.

Front

If you add a row to a model with an area of 12 square units, what could the new area be?

Back

It could be 16 square units.

Front

What are the dimensions of a rectangle with an area of 36 square feet?

Back

Possible dimensions include 6 feet by 6 feet or 9 feet by 4 feet.

Front

What is the area of a rectangle with a length of 8 cm and a width of 2 cm?

Back

16 square cm.