Use ΔDEF shown below to answer the question that follows:

Triangle DEF with segment DG drawn from vertex D and intersecting side EF.
Which of the following must be given to prove that ΔDEF is similar to ΔGDF?

Question

Use ΔDEF shown below to answer the question that follows:

Triangle DEF with segment DG drawn from vertex D and intersecting side EF.
Which of the following must be given to prove that ΔDEF is similar to ΔGDF?

Mercury · Answer

diagram (please post this next time) |dw:1599226125054:dw| clickable: https://www.coursehero.com/qa/attachment/7464884/ choices: Segment DG is an altitude of ΔDEF. Segment EF is a hypotenuse. Segment ED is shorter than segment DF. Angle E is congruent to itself.

Mercury · Answer

thoughts on this one?

as a major hint, notice how DEF is a right triangle, so if GDF is similar, it must also have a corresponding right angle. which of the four answer choices, if true, would give GDF a corresponding right angle?