1) What is the size of angle c? a) 65 ° b) 75° c) 85° 2) In a quadrilateral, if three angles measure 75°, 90°, and 60°, what is the measure of the fourth angle? a) 135° b) 225° c) 90° 3) What is the size of angle x? a) 230° b) 40° c) 50° 4) What is the supplementary angle to a 60° angle? a) 60° b) 90° c) 120° 5) What type of triangle is shown? a) equilateral b) isoceles c) scalene 6) If the sum of two angles is 90° and the difference between them is 30°, what are the measures of the angles? a) 60° and 30° b) 75° and 15° c) 75° and 35° 7) What type of angle is exactly 90°? a) Acute angle b) Right angle c) Obtuse angle 8) What is the size of angle O? a) 300° b) 180° c) 120° 9) What is the size of the angle? a) 60° b) 120° c) 180° 10) What type of angle is greater than 90° but less than 180°? a) acute angle b) obtuse angle c) reflex angle

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