1) What angle is this? a) acute b) obtuse c) right 2) What angle is this? a) acute b) obtuse c) straight d) right 3) What angle is this? a) acute b) obtuse c) right 4) What angle is this? a) acute b) obtuse c) right d) straight 5) How many degrees is a right angle? a) 20 º b) 180 º c) 50 º d) 90 º 6) How many degrees is a straight angle? a) 90 º b) 180 º c) 20 º d) 50 º 7) Which degree could be for an acute angle? a) 90 º b) 180 º c) 100 º d) 89 º 8) Which degree could be for an obtuse angle? a) 20 º b) 45 º c) 120 º d) 180 º 9) How many right angles are in a circle? a) 0 b) 2 c) 4 d) 8 10) How many degrees are in a circle? a) 90 º b) 360 º c) 180 º 11) What type of tool is used to measure angles? a) Ruler b) Compass c) Protractor d) Calculator

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