In diagram above, QR//TU, < PQR = 80° and < PSU = 95°. Calculate < SUT.
A.
15o
B.
25o
C.
30o
D.
80o
Correct answer is A
< PQR = < PTU = 80°
< TSU = 85°
x = 180° - (80° + 85°)
= 15°