SOLUTION: if A is equal to 5 and B is equal to 2,what is the C equal to?

Algebra ->  Pythagorean-theorem -> SOLUTION: if A is equal to 5 and B is equal to 2,what is the C equal to?      Log On


   

Question 126357: if A is equal to 5 and B is equal to 2,what is the C equal to?
Found 2 solutions by jim_thompson5910, checkley71:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
I'm assuming you want to find the hypotenuse right?

So we basically have this triangle set up:


Since we can see that the triangle has legs of 5 and 2 with a hypotenuse of x, we can use Pythagoreans theorem to find the unknown side.


Pythagoreans theorem:

a%5E2%2Bb%5E2=c%5E2 where a and b are the legs of the triangle and c is the hypotenuse



5%5E2%2B2%5E2=x%5E2 Plug in a=5, b=2, and c=x. Now lets solve for x


2+5+%2B+4+=++x++%5E+2 Square each individual term



2+9+=++x++%5E+2 Combine like terms


s+q+r+t+%28+2+9+%29+=+s+q+r+t+%28++x++%5E+2+%29 Take the square root of both sides


Which approximates to...

5.3851648071345=x

So our answer is
x=5.3851648071345


which means C=5.3851648071345

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
5^2+2^2=c^2 or 25+4=c^2 or 29=c^2 or c=sqrt29 or c=5.385 answer.