Finding the Area of Two Dimensional Shapes

The base of a rectangle is 12 ft and the height is 3.5 ft. What is the area?

• 15.5 ft²

• 36 ft²

• 42 ft²

• 21 ft²

What is the formula for the area of a trapezoid?

• A=bh

• A=1/2 bh

• A=1/2 (b₁+b₂) h

• A=1/2(b₁ x b₂₎ h

Which shape requires you to divide by 2 (or multiply by 1/2) when finding the area?

• rectangle

• circle

• parallelogram

• triangle

What is the area formula for a RECTANGLE?

• A= l x w

• A= s²

• A= l + w

• A= 1/2 (b1 + b2) h

Match the following shapes to the correct area formulas

• A=bh

  Rectangle

• 
• A=1/2(b1+b2)h

• 
• A=bh

  Parallelogram

• 
• A = 1/2bh

• 
• A=bh

  Square

• 

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

The formula for the area of a CIRCLE is...

• A = π d

• A = π r²

• A = π r

• A = π 2r

How do you find the area of a triangle?

• multiply base times height

• multiply base times height then divide by two

• find the distance around the triangle

_________________________ the measure of the space inside a two-dimensional figure expressed in square units

• Area

• Perimeter

• Volume

• Circumference

_________________________ can be any one side of the parallelogram or triangle; the height of a shape is perpendicular to this

• Base

• Vertex

• Diagonal

• Radius