## marcoduuuh WXY is a right triangle. A. True. B. False. (Picture below.) one year ago one year ago

1. marcoduuuh

2. iAmCool

A.True

3. marcoduuuh

Thaaaaankss! :D

4. LukeBlueFive

False, since the square of the hypotenuse is not equal to the sum of the squares of the other two sides. From the Pythagorean Theorem: $34 ≠ 18 + 18 = 36$

5. iAmCool

Mhm.. welcome:D

6. marcoduuuh

Wait, false or true then?

7. iAmCool

True, because it has a right angle. Like a 'L' shape.. It has 18 and 18 angles

8. LukeBlueFive

The Pythagorean Theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides. Since this is not the case with this triangle, it must not be a right triangle, since the theorem holds for all right triangles.

9. iAmCool

Wait? Yes it is.. o.o

10. iAmCool

It is a right triangle! o.o

11. iAmCool

Oh wait.. :3 NO it's not. :) Your are correct, my bad..

12. marcoduuuh

Aaaaaah. Yep, t'was false. Thanks guys! (:

13. iAmCool

Yeah. I just scanned the photo and saw the right angle not a right triangle. :P

14. LukeBlueFive

Taking the Pythagorean Theorem: $hypoenuse^2 = 2 \times sides^2$ And our specific example: $2 \times \sqrt{18}^2 = 2 \times 18 = 36$ This is not equal to $\sqrt{34}^2 = 34$ Therefore, this is not a right triangle, it just greatly resembles one.