Question

Plsss help meee I would really be happy

Answer 1

Pythagoras theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides.

`a^2+b^2=c^2`

`5^2+12^2=13^2`

`25+144=169`

`169=169`

Hence, this triangle is right-angled.