Question

Find the measure of Arc AC in the figure below. Explain your answer by showing your

steps or explain by writing 2-3 sentences.
PLS HELP!

Answer 1

Answer: 21

Explanation:

arc AC = 2b

3x + 9 = 2(3x - 1.5)

3x + 9 = 6x - 3

solve for x

6x - 3x = 9 + 3

3x = 12

x = 4

substitute in the 2 equations

3 (4) - 1.5 = 10.5

which means that if we substitute in the second equation we should get 21

3(4) + 9 = 21

so arc AC= 21 degrees