Answer:
since angle B and angle C contains the same arc AD. set the angles equal
11x-3=8x+15
x=6
so the angle has a measure of 63 degrees
the central angle is the angle of the arc
and it is always 2 times the angle that we just that contains the arc but does touches the end of the circle.
so its 63 *2 =126 degrees.
34½% = 34.5% = 0.345 = 345/1000 = 69/200
If 2 lines intersect to farm a right angle , they are perpendicular ....... I hope that help
