Question

DEF is a right triangle.

A. True
B. False

(Picture below.)

Answer 1

Did you try using the Pythagorean Thereom?

Answer 2

False.

Answer 3

actually @nicolebears there are some right triangles that you will see that don't have the square in the corner

Answer 4

and if you add 25, 27, and 48 they don't equal 90

Answer 5

why would they equal 90?

Answer 6

right triangle equal 90 degrees

Answer 7

you would have to use the Law of Cosine because you are given all 3 lengths

Answer 8

those are the side lengths though and you don't just add them up to get 90 degrees

Answer 9

@marcoduuuh have you learned Law of Cosine?

Answer 10

Noo! I didn't!

Answer 11

So the answer would be True right?

Answer 12

@kaylific

Answer 13

umm im not sure i did the law of cosine and i got that it equaled 135 degrees

Answer 14

I'm not sure lol

Answer 15

Ahhh. D:

Answer 16

i think its true

Answer 17

Thanks!

Answer 18

It was false. Thanks everyone! (: