Answer:
No, it is not a right triangle
Explanation:
A right triangle consists of hypotenuse, opposite and adjacent. For the sides to be a right angle, the r=square of the longest side (hypotenuse) must be equal to the sum of the square of the other two sides
Given the sides a = 6, b = 8 and c = 9
a²+ b² = c² (This equation must be satisfied)
Taking the sum of the square of a and b
6² + 8²
= 36 + 64
= 100
= 10²
Since the result is not the square of 9 which is the third side, hence the sides is not a right triangle