The document describes a problem where an investor is examining a triangular plot of land and needs to determine the measure of each angle. It states that the sum of the first two angles is 78 degrees more than the third angle. It also provides that subtracting the third angle from the second angle results in twice the measure of the first angle. The solution shows that the first angle is 26 degrees, the second angle is 103 degrees, and the third angle is 51 degrees.