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 angle do 2 complementary angles form? a) acute b) obtuse c) right d) straight 6) What angle do 2 supplementary angles form? a) acute b) obtuse c) right d) straight 7) What is the measure of a right angle? a) 360 º b) 180 º c) 50 º d) 90 º 8) What is the measure of a straight angle? a) 90 º b) 180 º c) 20 º d) 50 º 9) Which is the measure of an acute angle? a) 99 º b) 180 º c) 100 º d) 20 º 10) Which is the measure of an obtuse angle? a) 20 º b) 45 º c) 120 º d) 180 º

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