Problem Solving with Area of Triangles

Presentation

•

Mathematics

•

6th Grade

•

Hard

Joseph Anderson

FREE Resource

7 Slides • 6 Questions

6.8D Area of Triangles

How can you use the formula for the area of a parallelogram to find the area of a triangle?

LEARNING GOAL

I am learning to write equations related to the area of triangles and parallelogram and to determine solutions.

SUCCESS CRITERIA

*I can identify the geometric figure

* I write the formula for the area of triangle

*I can plugin numbers to find the area

INTRO

A Triangle is

half of a Parallelogram

The area of one triangle must be half the area of a parallelogram that has the same base and height.

I DO

WE DO

YOU DO

Multiple Choice

What is the area of this triangle?

49 square feet

600 square feet

100 square feet

300 square feet

Multiple Choice

What is the best estimate of the area of a triangle that has a base of 23.62 cm and a height of 8.33 cm?

200 square cm

160 square cm

100 square cm

50 square cm

Multiple Choice

What is the area of this triangle?

216 square cm

200 square cm

108 square cm

180 square cm

Fill in the Blanks

What is the area of a triangle with b = 20 in and height = 3 in?

Type answer...

Fill in the Blanks

Type answer...

Poll

How do you feel about finding the area of a triangle?

Great!

So-So

Confused

6.8D Area of Triangles

How can you use the formula for the area of a parallelogram to find the area of a triangle?

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