Answer:
No
Explanation:
The side lengths of the triangle are 5-8-9
For the triangle to be a right triangle the square length of base and side length should be equal to square length of the hypotenuse
let's check if this triangle have criteria for a right triangle
5^2 + 8^2 = 25 + 64 and that is equal to 89
9^2 = 81
89 is not equal to 81 so this is not a right angled triangle.