## anonymous 5 years ago the legs of a right triangle are 3 and 4. find the length of the hypotenuse.

1. anonymous

write down the general formula which is :$c^2 = x^2 + y^2$

2. xkehaulanix

For this, you would use the pythagorean theorem:$a ^{2}+b ^{2}=c ^{2}$ Since the legs are 3 and 4, replace a and b with them. $3^{2}+4^{2}=c ^{2}$ 9+16=c^2 25=c^2 Take the square root to get c=5

3. anonymous

so c is : $c =\sqrt{3^2 + 4^2} =\sqrt{25} = 5$

4. anonymous

^_^

5. xkehaulanix

Oh, sstarica has symbols. Use that one, it's prettier.

6. anonymous

lol :)

7. anonymous

thanks that was very helpfull :)

8. anonymous

a pleasure ^_^