Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom
GeoGebra

Area of Parallelogram (13-3)

ForfatterLily, Tim Brzezinski, Vincent Pantaloni, Duane Habecker

Formula

The formula we use to find the area of a parallelogram is the same as the formula we use to find the area of a rectangle:
This is because we can reconstruct a parallelogram to form a rectangle with the same area.

Let’s take a closer look...

Try to count the number of squares inside this pink and purple parallelogram below. How many squares (i.e. square units) do you estimate to be inside this parallelogram?

Drag the green slider to see the animation. Observe what happens. What shape do you see now?

How many squares do you now count in the newer shape that was formed?

How does the area of this new shape compare with the area of the original parallelogram?

Sæt kryds ved dit svar
  • A
  • B
  • C
Tjek mine svar (3)

Watch this video to see some examples using the formula

True or False

The formula to find the area of a parallelogram is the same as the formula to find the area of a rectangle.

Sæt kryds ved dit svar
  • A
  • B
Tjek mine svar (3)

The formula to find the area of a parallelogram is

Sæt kryds ved dit svar
  • A
  • B
  • C
Tjek mine svar (3)
Image

Which is the height in the parallelogram above?

Sæt kryds ved dit svar
  • A
  • B
  • C
Tjek mine svar (3)
Image

Which are always true about the height of a parallelogram?

Sæt kryds ved dit svar
  • A
  • B
  • C
  • D
  • E
Tjek mine svar (3)

Formula

Area = Base x Height

Practice

Practice

What is the area of this parallelogram?

Sæt kryds ved dit svar
  • A
  • B
  • C
  • D
Tjek mine svar (3)

Area is always measured in

Sæt kryds ved dit svar
  • A
  • B
Tjek mine svar (3)
Image

What is the area of this parallelogram?

Nye Materialer

Opdag Ressourcer

Udforsk emner