The Triangle Midsegment Theorem tells us that if a segment joins the midpoints of two sides of a triangle, then it is parallel to the third side of the triangle and its length is one-half the length of that side.
10
Practice makes perfect
We are given a triangle △KLM and its midsegment JH. Let's find the value of x.
The Triangle Midsegment Theorem tells us that if a segment joins the midpoints of two sides of a triangle, then it is parallel to the third side of the triangle and its length is $\textcolor{darkviolet}{\text{one-}}
\textcolor{darkviolet}{\text{half}}the length of that side.
'"`UNIQ--MLMath-0-QINU`"'
Finally, we will substitute the given values into this equation to findx.$
5=1/2( x) ⇔ x=10
