Given that Triangle PHT aid a right triangle and line HY is an altitude, what is the missing justification in the proof that (PH)2+(HT)2=(PT)2?

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

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