The Triangle Midsegment Theorem

The video tutorial explains midsegments in triangles, defining them as line segments joining the midpoints of two sides. It covers the properties of midsegments, including their equality and representation with tick marks. The triangle midsegment theorem is introduced, stating that a midsegment is parallel to a side of the triangle and half its length. The video also discusses how these properties allow for various geometric and algebraic applications, enabling the determination of unknown lengths in figures.

Explain how the lengths of midsegments relate to the sides of the triangle.

How can knowing the length of a midsegment help determine other lengths in a triangle?