5.4+Midsegment+Theorem

The midsegment of a triangle is the segment that connects two midpoints of two sides of the triangle. The segment is half the length of the line parallel to it. You will also learn that the midsegment theorem which says that the midsegment connecting two midpoints on two sides is parallel to the third side. The midsegments of a triangle can help to solve many problems like finding the perimeter. p.287
 * Summary:**

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 * Websites that teach this topic:

pg.288 Example 2
 * Sample Problems:

Use the triangle above for the next two problems. Segment JH is parallel to __?__ Answer: DF

Find the perimeter of triangle GHJ Answer: 21.3 pg. 290 #3 and #9

Vocabulary:

Midsegment Theorem- the segment connecting the midpoints of two side of a triangle is parallel to the third side and is half as long. pg. 288

Midpoint- Point on a line that cuts the line in half. Each ray formed by the midpoint are equal to each other.

Midsegment- The line that connects two midpoints of two sides in a triangle that is parallel to the third side. **