Unit 10: Area - Lesson 4

Unit 10: Area

Lesson 4 - Area of a Trapezoid

Vocabulary

Trapezoid's have 2 PARALLEL bases.

Base 1: Top Length

Base 2: Bottom Length

Height MUST be perpendicular from the base [90 degrees].

Multiple Choice

In a trapezoid, the bases are always_________.

• congruent

• parallel

• perpendicular

Area of a Trapezoid

 $Area=\frac{\left(base_1+base_2\right)h}{2}$  

 $A=\frac{1}{2}\left(b_1+b_2\right)h$  

Write the example in your notes->

Multiple Choice

Which is the correct area formula for Trapezoids?

Multiple Choice

Find the area of this trapezoid.
[Remember:  $A=\frac{1}{2}\left(b_1+b_2\right)h$  ]

• 26 ft²

• 20 ft²

• 52 ft²

• 40 ft²

Multiple Choice

Find the area
[Remember:  $A=\frac{1}{2}\left(b_1+b_2\right)h$  ]

• 19 cm²

• 39 cm²

• 78 cm²

• 120 cm²

Multiple Choice

What is the area of this trapezoid?

• 48 m²

• 68 m²

• 88 m²

• 136 m²

Multiple Choice

Find the area of a trapezoid with bases of 6 feet and 10 feet, and with a height of 6 feet?

• 60

• 36

• 32

• 48

Multiple Choice

Find the area of a trapezoid with bases of 5 feet and 7 feet, and a height of 3 feet.

• 18 
• 36
• 72
• 40