Answer:
cos0 = 1
cos90 =0
so a for the first one and d for the other
? = 125°
Step-by-step explanation:
The central angle is equal to the measure of the arc that subtends it, thus
66.3
i just did it on deltamath
1/4, 1/2, 3/4, 1
NEVER INTERSECT
Hope this Helps
