Question

prove that the triangle with 3 sides 3cm, 4cm and 5cm is a right angled triangle

Answer 1

formula of coordinate geometry

Answer 2

To prove the triangle a right angled one, the following steps will be taken

Let the longest side be hypotenuse = 5 cm
Let the other sides be base/height.

3² + 4² = 5²
9 + 16 = 25
25 = 25

Therefore, LHS = RHS due to which it is proved that the triangle is right angled with hypotenuse as 5 cm