Point o is the center of the circle.
what is the perimeter of quadrilateral dobc?
14 units
16 units
22 units
28 units

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.

Idk but keep trying

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