Area of 2D Shapes

What units do we use to show area?

• units

• squared units

• cubed units

What is the formula for the area of a parallelogram?

• bh

• lw

• s²

• 1/2(bh)

What is the formula for area of a triangle?

• A = bh

• A = bh/2

• A = b + h

• A = b - h

Marco's painting has an area of 320 square inches.  If the width of the painting is 16 inches, what is the length of the painting? 
*** Length= Area/Width

• 24 inches

• 22 inches

• 20 inches

• 26 inches 

Estimate the area of a circular playground if the diameter is approximately 10 units.

• 78 square units

• 100 square units

• 50 square units

• 314 square units

Calculate the area of a rhombus with diagonals 10 cm and 8 cm.

How is the formula for the area of a triangle related to the formula for the area of a parallelogram?

• The formula for the triangle is the same thing, just cut in half.

• The formula for the triangle is the same thing, just add 2 bases and cut in half.

• They're not related at all.

• They're the same.

What units do we use to show area?

• units

• squared units

• cubed units

What is the formula for area of a triangle?

• A = bh

• A = b + h

• A = bh / 2

• A = b - h

What is the area of a triangle if the base is 10 m, and the height is 4 m?