Area and perimeter of irregular shapes

Front

What is the area of a shape?

Back

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

Front

What is the perimeter of a shape?

Back

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

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Tags

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 the formula for the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3.

Tags

CCSS.3.MD.D.8

Front

If a shape has equal sides, how do you find its perimeter?

Back

Perimeter = number of sides × length of one side.

Tags

CCSS.3.MD.D.8

Front

What is an irregular shape?

Back

An irregular shape is a shape that does not have equal sides or angles.

Tags

CCSS.2.G.A.1

CCSS.1.G.A.1

Front

How can you find the area of an irregular shape?

Back

You can divide it into regular shapes, calculate their areas, and then sum them up.

Tags

CCSS.3.MD.C.7D

Front

What is the relationship between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around it.