Ray OB divides ∠COA into two angles of what measure? 40° 30° 35° 20°

20

Step-by-step explanation:

I suppose the figure that you do not include in your exercise is the one that I attached.

Looking at the figure, it is obvious that the angle COA is divided into two angles of 20 degrees each, so the answer would be 20.

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

but there’s no any figure there!