Sample Test Item 45 (2003)

The angle is 84o.
The angle is not a right angle. A right angle is exactly 90o. Choice B is eliminated.
The angle is not an obtuse angle. An obtuse angle is greater than 90o. Choice C is eliminated.
Choice A makes no sense. Why do you need to measure another angle?
Choice D is the only correct answer. The angle is acute (less than 90o).

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