Area of Two-Dimensional Shapes

What is the formula for area of a triangle?

• A = bh

• A = bh/2

• A = b + h

• A = b - h

What units do we use to show area?

• units

• squared units

• cubed units

What is the formula for the area of a trapezoid.

• base x height

• 1/2 base x height

• 1/2 h(b₁ + b₂)

• 1/3 base x height

What is the area of a square with a length of 4 cm?

• 16 cm

• 16 cm²

• 8 cm²

• 8 square cm 

Match the following shapes to the correct area formulas

• A = 1/2bh

• 
• A=1/2(b1+b2)h

• 
• A=bh

  Rectangle

• 
• A=bh

  Square

• 
• A=bh

  Parallelogram

• 

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

What is the formula for the area of a parallelogram?

• bh

• lw

• s²

• 1/2(bh)

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