SOLUTION: Hi am helping my son to do his math homework. can you help us with this problem to show how to solve this. i don't have no idea. 9cm and y = 12, what is the length of z? righ

Algebra ->  Triangles -> SOLUTION: Hi am helping my son to do his math homework. can you help us with this problem to show how to solve this. i don't have no idea. 9cm and y = 12, what is the length of z? righ      Log On


   

Question 730873: Hi am helping my son to do his math homework. can you help us with this problem to show how to solve this. i don't have no idea.

9cm and y = 12, what is the length of z? right angle triangle is the picture.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Your question is a little hard to read.
Is it: +x+=+9+, +y+=+12+ are the legs of
a right triangle? Find +z+, the hypotenuse.
+z+=+sqrt%28+x%5E2+%2B+y%5E2+%29+
+z+=+sqrt%28+9%5E2+%2B+12%5E2+%29+
+z+=+sqrt%28+81+%2B+144+%29+
+z+=+sqrt%28+225+%29+
+z+=+15+
The hypotenuse = 15 cm