1) Classify this angle. a) acute b) obtuse c) right d) straight 2) Classify this angle. a) acute b) obtuse c) straight d) right 3) Classify this angle. a) acute b) obtuse c) straight d) right 4) Classify this angle. a) acute b) obtuse c) right d) straight 5) What is the measure of a right angle? a) 360 º b) 180 º c) 50 º d) 90 º 6) What is the measure of a straight angle? a) 90 º b) 180 º c) 20 º d) 50 º 7) Which of the following could be the measure of an acute angle? a) 99 º b) 180 º c) 100 º d) 20 º 8) Which of the following could be the measure of an obtuse angle? a) 20 º b) 45 º c) 120 º d) 180 º

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