jchen1821 wrote:
Are we supposed to assume for this question that PS is a straight line? I chose "E" because I didn't want to assume PS as a straight line and the similar triangles could potentially be rotated around point T making the lines potentially not parallel even if c=90 degrees.
OFFICIAL GUIDE:Problem SolvingFigures: All figures accompanying problem solving questions are intended to provide information useful in solving the problems. Figures are drawn as accurately as possible. Exceptions will be clearly noted. Lines shown as straight are straight, and lines that appear jagged are also straight. The positions of points, angles, regions, etc., exist in the order shown, and angle measures are greater than zero. All figures lie in a plane unless otherwise indicated.
Data Sufficiency:Figures:• Figures conform to the information given in the question, but will not necessarily conform to the additional information given in statements (1) and (2).
• Lines shown as straight are straight, and lines that appear jagged are also straight.• The positions of points, angles, regions, etc., exist in the order shown, and angle measures are greater than zero.
• All figures lie in a plane unless otherwise indicated.
Hope it helps.
Sir, could you please explain why c must equal 90 degree for the two lines to be parallel? I mean if say c= 89, both lines would be making the same angle from x axis and hence they should be parallel. Am I missing something? Plus, don't you think that since both the lines have c as angle with x axis, the question is already establishing that both lines are parallel since c can have only one value? Shouldn't the two angles be denoted with different variables in this question?