9514 1404 393
Answer:
B. 30, 30, 60
Step-by-step explanation:
Angle 1 is the complement of angle 3, so is 90° -60° = 30°.
The angle bisector makes angle 2 equal to angle 1, 30°.
Angle 4 is the complement of angle 2, so is 90° -30° = 60°.
The measures of angles 1, 2, 4 are 30, 30, 60.
__
If you're paying attention, you know that the angle bisector makes angles 1 and 2 equal. There is only one answer choice with angles 1 and 2 equal. No math required. Just use the reasonableness test on the answer choices.
