Question

if you are given a triangle with lengths of 3 inches, 6 inches and 7 inches, is it a right triangle?

Answer 1

\[3^2+6^2=45\]and
\[7^2=49\]
\[45\neq49\]
In other words, the Pythagorean Theorem is not satisfied, and therefore it is not a right triangle.

Answer 2

no~ the right triangle need to fit the formula a^2+b^2=c^2, and \[9+36\neq49\]