This set of numbers are measurements of a right triangle 18,15,4

It is not a Right Angled Triangle.

Step-by-step 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.