Question

Find whether the sides of the triangle as given below form a right-triangled or not, $8$ cm, $14$ cm and $18$ cm

Answer 1

In a right angled triangle, sum of squares of two sides should be equal to the square of the third side.
Here, $8^2=64$

${14}^2=196$

${18}^2=324$
Since, $64+196\ne 324$, the sides do not form a right angled triangle.