## OpenSessame Group Title A triangle has side lengths 10, 15, and 7. Is the triangle acute, obtuse, or right? Explain one year ago one year ago

1. OpenSessame Group Title

MY ANSWER: Obtuse, because to find if the triangle is right, acute or obtuse you use the Pythagorean Theorem. You plug in the two smaller numbers in the equation to it looks like this, 7^2+10^2=12.2. Since the hypotenuse given in the problem is larger than the hypotenuse you get in the theorem it is obtuse. Can someone explain what I did wrong?

2. shaagasda Group Title

You're correct.

3. OpenSessame Group Title

But my teacher said it was wrong...

4. shaagasda Group Title

The answer would be awkward, I know.

5. OpenSessame Group Title

Awkward?

6. shaagasda Group Title

Lol... tell your teacher to look again.

7. OpenSessame Group Title

I did, and she still said it was wrong. That is why I am asking for help.

8. shaagasda Group Title

Stop cheating.

9. shaagasda Group Title

Cheating is so pathetic, seriously.

10. shaagasda Group Title

Don't cheat, you learn nothing by cheating.

11. OpenSessame Group Title

I'm not?

12. OpenSessame Group Title

@e.mccormick Can you help?

13. shaagasda Group Title

@e.mccormick Don't help him, he's cheating.

14. OpenSessame Group Title

I'm not cheating, so if you can't help please leave this thread alone.

15. e.mccormick Group Title

The only thing I see wrong is ytour math: $$7^2+10^2=12.2$$ is not true. $$7^2+10^2=149$$ is true and $$15^2=225$$ is true and $$\sqrt{7^2+10^2}\approx12.2$$ is true.

16. OpenSessame Group Title

Okay, thats it?

17. e.mccormick Group Title

If that is the exact answer you submitted, yes, that is why it would be marked wrong. you did not actually apply the Pythagorean Theorem in that equation. You came close, but forgot the root sign!

18. OpenSessame Group Title

Oh okay! Thanks!