Perimeter and area

Front

What is perimeter?

Back

Perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Tags

CCSS.4.MD.A.3

Front

What is area?

Back

Area is the amount of space inside a shape.

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width: A = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.

Tags

CCSS.6.G.A.1

Front

What is a rhombus?

Back

A rhombus is a four-sided shape (quadrilateral) where all sides are of equal length.

Tags

CCSS.3.G.A.1

Front

How do you find the perimeter of a rhombus?

Back

Multiply the length of one side by 4: P = 4 × side length.

Tags

CCSS.3.MD.D.8

Front

What is the area of a square?

Back

Area = side × side.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the difference between perimeter and area?

Back

Perimeter measures the distance around a shape, while area measures the space inside it.

Front

What units are used to measure perimeter?

Back

Perimeter is measured in linear units such as meters, centimeters, or millimeters.