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He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .
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If tan2a=cot(a+60), find the value of a, where 2a is an acute angle
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In the diagram, be and ad pass throughthe center of circle o, and the area ofsector aoc is 47.45 square units. what isthe area of sector boc? use the value =3.14, and round your answer to two decimalplaces.22.33 square units25.12 square units
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Find the area of a circle with a circumference of 31.4...
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