In the figure above, in the measure of angle1 is not equal to the measure of angle4, then the cosine of which of the following is equal to the sine of angle1? A) angle3 only
B) angle4 only
C) angle2 and 4 only
D) angle3 and 4 only
E) angle2,3,and 4
I’ll post the figure in the comments. 🙂