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 type of angle do 2 adjacent complementary angles form? a) acute b) obtuse c) right d) straight 6) What type of angle do 2 adjacent 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 of the following could be the measure of an acute angle? a) 99 º b) 180 º c) 100 º d) 20 º 10) Which of the following could be the measure of an obtuse angle? a) 20 º b) 45 º c) 120 º d) 180 º 11) How many degrees are in a circle? a) 90 º b) 360 º c) 180 º d) I have no idea 12) Which of the following is not a way to name this angle? a) ∠XYZ b) ∠YZX c) ∠ZYX d) ∠Y

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