Which of the following is an example of a combination? O A. The number of ways 12 picture frames can be arranged in a row
on a shelf
B. The number of ways 3 people can win 3 different prizes
C. Selecting a first, seconds, and third-glace winner at a beauty
O D. Picking 4 sets of towels out of 20 different sets

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step-by-step explanation:

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees