Peter walks 30 feet away from his house and places a mirror on the ground. He backs 6 feet away from the mirror so that he can see the tip of the roof. Peter's eyes are 5 feet above the ground. The angles between the top of the house, the mirror, and the ground and between Peter's eyes, the mirror, and the ground are congruent as shown in the image:
image isn't viewed ?
put link
you draw it then :P
6 and 24 are on straight line or not ?? he said all 30
|dw:1420970792141:dw| right angle triangles and has two equal angles so the third = the third therefore the are similar (three equal angles).
Prove the triangles are similar. they are similar not congruent they can't have the same side.
It's AA Similarity Postulate. you have two sides in one triangle and only one side in the other ,so will work with angles. two are the same due to mirror and the are right.
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