If point Z is the incenter of triangle RST. The value of x = 5. So, the correct option is C.
The incenter is the point where the angle bisectors intersect, and x could represent various lengths or angles within the context of the specific triangle RST.
Given, In △RST, Z is the incenter of △RST.
Let AS, RB, CT to be the three perpendicular bisectors.
In △SAZ and △SBZ:
AZ = BZ (Z is the center)
∠SAZ = ∠SBZ (perpendicular bisector)
SZ = SZ (common)
Since, the above two triangles are fulfilling the three congruent criteria. Therefore:
△SAZ ≅ △SBZ (RHS congruence criteria)
This implies:
∠ASZ = ∠BSZ (CPCT)
5x - 9 = 16
5x = 16 + 9
5x = 25
x = 5.
This concludes that x consists the value of 5 if Z is the incenter of a given triangle RST.
Question:
Point Z is the incenter of triangle RST. What is the value of x?
A. x = 2
B. x = 3
C. x = 5
D. x = 8