Area of Polygons Review

Area of Polygons Review

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Area of a Parallelogram

• Area = Base x Height

• Remember the base and the height are always perpendicular to each other. Look for the right angle box and the dotted lines to identify the height.

Area of a Parallelogram Formula

• Area = Base x Height

• a = bh

Multiple Choice

Which is the correct area formula for Parallelograms?

Multiple Choice

What is the area of the parallelogram?

• 18 sq. units

• 15 sq. units

• 7.5 sq. units

• 9 sq. units

Multiple Choice

What is the area of the polygon?

• $45\ mm^2$

• $27\ mm^2$

• $15\ mm^2$

• $135\ mm^2$

Multiple Choice

Find the area.

• 60 in

• 60 in²

• 50 in

• 50 in²

Multiple Choice

What is the area of the shaded region?

• 4 cm²

• 16 cm²

• 8 cm²

• 12 cm²

Area of Triangles

• There are two formulas for finding the area of a triangle

• a= bh/2

• a= (1/2)bh

Multiple Choice

Find the area of the triangle. 

• 20 cm²
• 56 cm²
• 28 cm²
• 27 cm²

Multiple Choice

What is the area?

• 12 cm²

• 12

• 14 cm²

• 24 cm²

Multiple Choice

Mrs. Bailey has a Rangers pennant that has a base of 12 inches and is 20 inches tall. What is the area of the Rangers pennant?

• 240 in²

• 120 in²

• 32 in²

• 24 in²

Area of a Trapezoid

• There are two ways to find the area of a trapezoid

• (b₁+ b₂) x h / 2

• 1/2 (b₁+b₂)

• Use the formula that you feel comfortable using for the next few problems

Multiple Choice

True or false. A trapezoid has 2 bases.

• True

• False

Multiple Choice

In a trapezoid, the bases are always_________.

• congruent

• parallel

• perpendicular

Multiple Choice

What is the area of this trapezoid?

• 65 sq. meters

• 32.5 sq. meters

• 26 sq. meters

• 52 sq. meters

Multiple Choice

What is the area of this trapezoid?

• 12 sq. units

• 24 sq. units

• 48 sq. units

• 96 sq. units

Multiple Choice

Find the area of the trapezoid.

• 17 in²

• 35 in²

• 17.5 in²

• 12 in²

Multiple Choice

Find the area of this composite figure.

* Hint it is composed of a rectangle and triangle.**

• 324 ft ²

• 234 ²

• 310 ft²

• 320ft²

Multiple Choice

What is the area of this shape?

• 27 sq. ft.

• 11.5 sq. ft.

• 18 sq. ft.

• 21 sq. ft.

Multiple Choice

How are you feeling about the quiz on Friday?

• I am ready!

• I feel good but I need a little more practice

• I am nervous

• I don't know area at all