Topic 10-3 (Area of a Triangle)

Topic 10-3 (Area of a Triangle)

School Year 2022-2023

Let's start with a couple of review questions...

You ready?

Multiple Choice

1.) Whose green paint mixture has a yellow-to-blue unit rate of 5 ounces to 1 ounce?

• Clara

• Faye

• Jim

• No One

Multiple Choice

3.) What is the perimeter, in miles, of the rectangle formed by connecting the points representing the cabana, beach, water slide, and roller coaster?

• 10 miles

• 11 miles

• 20 miles

• 22 miles

Now it's time for Triangle-pa-looza!

WHOOP WHOOP!

Multiple Choice

4.) What is the area of the triangle?

• 12 cm²

• 14 cm²

• 18 cm²

• 24 cm²

Multiple Choice

5.) Find the area of the triangle

• 22 in²

• 12 in²

• 24 in²

• 6 in²

Fill in the Blanks

Fill in the Blanks

Multiple Choice

What is another way you can write the area of a triangle formula?

• $$A\ =\ bh$$

• $$A\ =\ \frac{bh}{2}$$

• $$A\ =\ 2bh$$

• $$A\ =\ \frac{1}{2}h\left(b1\ +\ b2\right)$$

Multiple Select

8.) Select all the expressions that represent the area of the triangle shown.

• $$A\ =\ \frac{1}{2}\left(12\ \times\ 16\ \right)$$  

• $$A\ =\ 12\ \times\ 16$$  

• $$A\ =\ 9.6\ \times\ 20$$  

• $$A\ =\ \frac{1}{2}\left(16\ \times\ 9.6\right)$$  

• $$A\ =\ \frac{1}{2}\left(20\ \times\ 9.6\right)$$  

Open Ended

Can any side of a triangle be the base of the triangle?