Answer:
Step-by-step explanation:
Triangle A B C extended to both sides from corners A and B. D is a point closer to point A . Angle C is located on the top of the triangle.
The diagram is attached below
In a triangle , external angle = sum of two opposite interior angles
so
3in
60
half of 30 is 15
and 15 is 1 quarter of 60
0.1875
Step-by-step explanation: 1/4 of 3/4 = 0.1875