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DEF is a right triangle. A. True B. False (Picture below.)

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1 Attachment
Did you try using the Pythagorean Thereom?
False. |dw:1352329866882:dw|

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Other answers:

actually @nicolebears there are some right triangles that you will see that don't have the square in the corner
and if you add 25, 27, and 48 they don't equal 90
why would they equal 90?
right triangle equal 90 degrees
you would have to use the Law of Cosine because you are given all 3 lengths
those are the side lengths though and you don't just add them up to get 90 degrees
@marcoduuuh have you learned Law of Cosine?
Noo! I didn't!
So the answer would be True right?
umm im not sure i did the law of cosine and i got that it equaled 135 degrees
I'm not sure lol
Ahhh. D:
i think its true
It was false. Thanks everyone! (:

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