Middle Segment of a Triangle:
Triangles are geometric figures with three sides and three internal angles. We can find different types of lines inside a triangle; one of them is the middle segment. The middle segment of a triangle is a line parallel to one of the sides and bisecting the other two sides. Let L be the line of the middle segment and AC the side parallel to the line L, then the formula of the middle segment is:
L = AC/2
We are given a diagram:
Our objective is to find the missing length of RQ.
We can see that the RQ line divides the ST and UT lines in equal parts. Moreover, the SU and RQ lines are parallel; therefore, we can conclude that the RQ line is the middle segment of the STU triangle. So:
RQ = SQ/2
→2x+2 = (5x-10)/2
→2(2x+2) = 5x-10
→4x+4 = 5x-10
→ 5x-4x = 10+4
x = 14
and RQ = 30
and SU = 60