Question

What is the measure of angle OAC if major arc AB
measures 220 degrees?
55°
70°
110°
140°

Answer 1

Answer:

A). 55°

Step-by-step explanation:

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Answer 2

There is no enough information to answer the question as the diagram of the arc is not given.

However, I will give a general rule to answer the question.

If the measure of angle OAC is half of the arc AB, then the measure of angle OAC is:

OAC = 0.5 * 220 degrees

OAC = 110 degrees

If the measure of angle OAC is quarter of the arc AB, then the measure of angle OAC is:

OAC = 0.25 * 220 degrees

OAC = 55 degrees

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