Answer:
24
Explanation:
The sum of the three angles in a triangle is always 180 degrees.
Let x be the measure of the third angle.
Then we have:
102 + 54 + x = 180
Simplifying the left side:
156 + x = 180
Subtracting 156 from both sides:
x = 180 - 156
x = 24
Therefore, the measure of the third angle is 24 degrees.