Chapter Review
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The Triangle Midsegment Theorem tells us that, if a segment joins the midpoints of two sides of a triangle, then the segment is half as long as the third side.
x=11
To find the value of x in the given diagram, let's start by labeling the vertices of each of the smaller triangles.
XY= x+5, AC= 3x-1
LHS * 2=RHS* 2
Distribute 2
LHS-2x=RHS-2x
LHS+1=RHS+1
Rearrange equation