SOLUTION: one side of a triangle has a length of three units. another side of the triangle has a length of four units. the two sides meet at a right angle. How many units long is the thrid s

Algebra ->  Triangles -> SOLUTION: one side of a triangle has a length of three units. another side of the triangle has a length of four units. the two sides meet at a right angle. How many units long is the thrid s      Log On


   



Question 658742: one side of a triangle has a length of three units. another side of the triangle has a length of four units. the two sides meet at a right angle. How many units long is the thrid side?
Answer by colliefan(242) About Me  (Show Source):
You can put this solution on YOUR website!
Since it is a right triangle, you can use the Pythagorean theorem to find the length. That theorem is a^2 + b^2 = c^2, where a and b are the lengths of the legs of the right triangle and c is the length of the hypotenuse.
Substituting in the values that you are given:
3%5E2%2B4%5E2=c%5E2
9%2B16=c%5E2
25=c%5E2
c=5
5 is the length of the hypotenuse.