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GeoGebra Classroom

Midsegments in Triangles and the Midsegment Theorem

Author:Patricia Zeran

Topic:Triangles

Slides 7-9

Points D, E, and F are the __?__ of each side of the triangle.

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Slide 15

The angle measures for angles ABC and ADF are congruent. Which of the following supports the conclusion that segments DF and BC are parallel?

Select all that apply

A
Alternate Interior Angles Theorem
B
Corresponding Angles Postulate
C
Same Side Interior Angles Theorem

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Slide 19

Which of the following segments are congruent to segment DF?

Select all that apply

A
BE
B
CE
C
Both are congruent to DF because they are also (1/2) BC

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After you explored....

What do you think is true about the 4 small triangles formed by the 3 midsegments? Explain.

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