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3.06 Midsegments

Adaptive
Worksheet

Interactive practice questions

Which two of the following line segments are midsegments of $\triangle ABC$ABC?

$\overline{AB}$AB

A

$\overline{DF}$DF

B

$\overline{BC}$BC

C

$\overline{BF}$BF

D

$\overline{DE}$DE

E

$\overline{AC}$AC

F
Easy
< 1min

Consider the following figure:

Easy
4min

Determine the value of $a$a in the following triangle:

Medium
2min

Consider the following figure:

Medium
2min
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Outcomes

G.CO.C.10

Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.

G.CO.D.12

Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). Copying a segment; copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; and constructing a line parallel to a given line through a point not on the line.

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