Answer:
It is not a Right Angled Triangle.
Explanation:
A right angled triangle is a triangle whose sides satisfy the following equality.
Lets say A triangle has sides a, b and c. Where c is the longest side.
Then,
Lets substitute the values to the above equation to see whether the triangle we are given satisfies the above equality,
=
=


Therefore,
≠[tex]18^{2}
So it is not a Right Angled Triangle.