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## anonymous one year ago Find the missing length in the right triangle. Round to the nearest tenth. Legs: 15, 20 cm WILL BE A FAN

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1. anonymous

So you know the Pythagorean theorem right?

2. anonymous

NO!!

3. anonymous

Well let's say that the two legs are a and b and the hypotenuse is c. In the Pythagorean theorem, we can figure out the hypotenuse with the two legs. It looks like this $\large a^{2}+ \large b^{2}= \large c^{2}$

4. anonymous

So then the answer would be?????

5. anonymous

We'll get to that. So let's plug in our leg values, a and b. We'll get $\large 15^{2}+20^{2}=c^{2}$

6. anonymous

So thats the answer!!!!

7. anonymous

Our answer is the c. We're solving for that currently.

8. anonymous

kk thanks!!!

9. anonymous

Thanks for what? Did you figure out the answer?

10. anonymous

NO!!!!!!

11. anonymous

So do you still want my help or?

12. anonymous

DUDE can u just tell me answer please!!!!! i will fan u!!!!!

13. anonymous

wait so the answer is 4,900???

14. anonymous

Giving the answer directly is against the code of conduct so no, i can't just give you the answer. http://openstudy.com/code-of-conduct

15. anonymous

GOtcha but the answer then is 4,900???

16. anonymous

Well what is $\large 15^{2}?$

17. anonymous

225

18. anonymous

And what is $\large 20^{2}?$

19. anonymous

400

20. anonymous

so do i add them toghether to get the answer??

21. anonymous

Close. One more step after that. 225+400=?

22. anonymous

kk and i get 625!!

23. anonymous

and that the answer!!

24. anonymous

Ok so right now we have $\large 625=c^{2}$ So to find c, we need to get the square root of both sides $\large \sqrt{625}=c$ THIS will give you the answer

25. anonymous

312.5

26. anonymous

??????

27. anonymous

We aren't dividing by 2, we're getting the square root of it.

28. anonymous

ooh so then.....

29. anonymous

Go to http://web2.0calc.com/ and put sqrt(625) into the bar

30. anonymous

this is 25!!!

31. anonymous

Yep. So 25 is your answer :)

32. anonymous

man thanks bro u teached me something new man thanks ill will fan u!!

33. anonymous

No problem :)

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