Finding Perimeter and Area

Front

What is the definition of perimeter?

Back

The perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

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

Tags

CCSS.4.MD.A.3

Front

What is the definition of area?

Back

The 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

A = 1/2 × base × height.

Tags

CCSS.6.G.A.1

Front

What is the formula for the perimeter of a square?

Back

P = 4 × side length.

Tags

CCSS.4.MD.A.3

Front

What is the area of a square?

Back

A = side length × side length.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the relationship between perimeter and area?

Back

Perimeter measures the boundary length, while area measures the space within.

Front

What is the perimeter of a shape with sides measuring 5, 10, 5, and 10 units?

Back

P = 5 + 10 + 5 + 10 = 30 units.

Tags

CCSS.3.MD.D.8

Front

What is the area of a rectangle with a length of 8 units and a width of 4 units?

Back

A = 8 × 4 = 32 square units.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3