If AD is an altitude of ΔABC, then ΔABC and ΔDBA both have a right angle. Also, ∠B is in common to both triangles. Therefore, by the Angle-Angle Postulate, the triangles are similar.
Anshu M.
asked • 05/01/24Geometry (please help, quick)
Use ΔABC shown below to answer the question that follows:
Which of the following must be given to prove that ΔABC is similar to ΔDBA?
| Segment AD is an altitude of ΔABC. |
| Segment CB is a hypotenuse. |
| Segment CA is shorter than segment BA. |
| Angle C is congruent to itself. |
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AC is an altitude of ABC. The function of AD cannot be stated.05/02/24