Question

In the following triplet pythagorean ? show working
(18, 79, 82)

Answer 1

Three numbers $a,b,c$ form a pythagorean triplet ( where $c$ is the largest number ) if,

$c^2=a^2+b^2$

The given numbers are $18,79,82$

${18}^2+{79}^2=324+6241=6565$

${82}^2=6724$

${18}^2+{79}^2\ne {82}^2$

So, these numbers do not form pythagorean triplet.