Answer:
s = 8
Step-by-step explanation:
A segment joining the midpoints of 2 sides of a triangle is half the length of the third side, that is
WZ = [tex]\frac{1}{2}[/tex] XY , substitute values
2s = [tex]\frac{1}{2}[/tex] (s + 24) ← multiply both sides by 2 to clear the fraction
4s = s + 24 ( subtract s from both sides )
3s = 24 ( divide both sides by 3 )
s = 8
