Area of a Trapezoid

Area of a Trapezoid

Lesson Goals

• Determine the area of a trapezoid.

Finding the area of a trapezoid

• How would you find the area of this shape?

• We will revisit this one later. 

Trapezoid Area Formula

Multiple Select

Which two measurements can be used as the base 1 and base 2 for this trapezoid?

• 4m

• 5m

• 8m

Multiple Choice

What is the height of this trapezoid?

• 4m

• 5m

• 8m

Multiple Choice

What is the area of this trapezoid?

• $$80m^2$$

• $$32.5m^2$$

• $$26m^2$$

• $$50m^2$$

How did you do?

• If you got it wrong, what did you do wrong?

Multiple Choice

What is the area of this trapezoid?

• $$22.5in^2$$

• $$81in^2$$

• $$45in^2$$

• $$162in^2$$

How did you do?

• If you got it wrong, what did you do wrong?

Review: Trapezoid Area Formula

Multiple Choice

How many sides does a trapezoid have?

• 2

• 3

• 4

• 5

Multiple Choice

What are the bases?

• 8

• 4 and 6

• Just 6

• 4, 6, 8

Multiple Choice

What is the height?

• 4

• 6

• 8

• 4 and 6

Multiple Choice

What is the area?

• 80 cm²

• 40 cm²

• 96 cm²

• 18 cm²

Multiple Choice

Find the area.

• 61

• 125

• 62.5

• 80

Poll

How would you describe finding the area of trapezoids?

• Easy

• Not bad

• Hard

• Confusing