SOLUTION: how to tell whether the triangle is a right triangle

Algebra ->  Pythagorean-theorem -> SOLUTION: how to tell whether the triangle is a right triangle      Log On


   

Question 175864This question is from textbook geometry
: how to tell whether the triangle is a right triangle This question is from textbook geometry

Found 2 solutions by stanbon, cloudstrifeo0o:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
determine whether it has a right angle.
Cheers,
Stan H.

Answer by cloudstrifeo0o(5) About Me  (Show Source):
You can put this solution on YOUR website!
To tell whether a triangle is a right triangle, you need the measurements it gives you first;
Here's an example:
The three sides of a triangle are 14, 19, 23. Prove if it's a
right triangle.
Pythagorean Theorem: a^2 + b^2 = c^2. The largest measurement is always the Hypotenuse.
14^2 + 19^2 = 23^2
196 + 361 = 529 Add the sides A and B.
557 = 529 Is this right? No. So, the triangle is NOT a right triangle.
If the triangle WAS right, then the numbers would equal each other.