Decompose Find Area

What is the area of the figure plotted on the coordinate grid?

• 26 units2

• 35 units2

• 40 units2

• 48 units2

What is the area of this irregular figure?

• 17.5 units2

• 17 units2

• 21 units2

• 16.5 units2

Finding area is most like...

• Finding the distance arouind your yard for a new fence.

• Figuring out how much paint you need for the walls of a bedroom.

• Measuring to see how much carpet you would need to cover the floors in a house.

What formula would you use to find the area of a trapezoid?

• b x h ÷ 2

• l x w

• (b+b) x h ÷ 2

• b x h x 2

The area of this rectangle is...

• 42 square cm

• 21square cm

• 80 square cm

• 752 square cm

Ms. Olivo put two rectangular tables together. The length and width of each table is shown in feet in the model below. What is the total area of the top of the tables put together?

• 18 square feet

• 36 square feet

• 54 square feet

• 90 square feet

Find the area of this quadrilateral.

Hint: Think about decomposing and rearranging.

• 28 sq units

• 40 sq units

• 35 units²

• 21 units²

The amount of space inside an object or figure is called:

• area

• perimeter

Both figures have the same area.

• True

• False

Mary wants to hang 2 photos that are different sizes on her wall. She drew the model below to show how she will hang them.

• 3 + 5 = 8,

  2 + 3 = 5,

  8 + 5 = 13 square units

• 3 x 5 = 15

  2 x 3 = 6

  15 + 6 = 21 square units

• 3 x 2 = 6

  6 x 5 = 30

  30 - 3 = 27 square units

• 3 + 2 = 5

  5 + 3 = 8

  5 x 8 = 40 square units