P is a point on one side of the straight line UV and P moves in the same direction as UV. If the straight line ST is on the locus of P and angle VUS = 60°, find angle UST.
-
A.
310° -
B.
130° -
C.
80° -
D.
50°
Correct Answer: Option B
Explanation
Make a good sketch of the question, and follow this steps.
Since ST is parallel to UV => angle USR = 50°(alternate to VUS.
Angle UST = 180° – 50° = 130° (angle on a straight line)