If the equation 18^2 + b^2=30^2 is found to be true, what do we know about the triangle?
If the equation 18^2 + b^2 = 30^2 is found to be true, we can deduce that the given equation represents the Pythagorean theorem, which states that in a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides.
Therefore, the triangle in question is a right-angled triangle with side lengths 18, b, and 30.