Area and Perimeter

Front

What is the area?

Back

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

Front

What is the perimeter?

Back

The perimeter is the total distance around a shape, measured in linear units.

Front

If a rectangle has a length of 5 cm and a width of 3 cm, what is its area?

Back

15 sq cm (Area = length × width = 5 cm × 3 cm).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a length of 4 cm and a width of 2 cm, what is its perimeter?

Back

12 cm (Perimeter = 2 × (length + width) = 2 × (4 cm + 2 cm)).

Tags

CCSS.4.MD.A.3

Front

What can be true about two rectangles with the same area?

Back

They can have different perimeters.

Tags

CCSS.3.MD.D.8

Front

What can be true about two rectangles with the same perimeter?

Back

They can have different areas.

Tags

CCSS.3.MD.D.8

Front

If two rectangles have the same area but different perimeters, what does that mean?

Back

It means they cover the same amount of space but have different shapes.

Tags

CCSS.3.MD.D.8

Front

If a rectangle has a perimeter of 20 units and an area of 30 square units, can you find its dimensions?

Back

Yes, but there can be multiple combinations of length and width.

Tags

CCSS.4.MD.A.3

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for finding the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Tags

CCSS.3.MD.D.8