Question

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

Answer 1

So you know the Pythagorean theorem right?

Answer 2

NO!!

Answer 3

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 \[\large a^{2}+ \large b^{2}= \large c^{2}\]

Answer 4

So then the answer would be?????

Answer 5

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

Answer 6

So thats the answer!!!!

Answer 7

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

Answer 8

kk thanks!!!

Answer 9

Thanks for what? Did you figure out the answer?

Answer 10

NO!!!!!!

Answer 11

So do you still want my help or?

Answer 12

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

Answer 13

wait so the answer is 4,900???

Answer 14

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

Answer 15

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

Answer 16

Well what is \[\large 15^{2}?\]

Answer 17

225

Answer 18

And what is \[\large 20^{2}?\]

Answer 19

400

Answer 20

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

Answer 21

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

Answer 22

kk and i get 625!!

Answer 23

and that the answer!!

Answer 24

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

Answer 25

312.5

Answer 26

??????

Answer 27

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

Answer 28

ooh so then.....

Answer 29

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

Answer 30

this is 25!!!

Answer 31

Yep. So 25 is your answer :)

Answer 32

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

Answer 33

No problem :)