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Hosted by Mrs. Luck Get in LINE! Angles & Demons Are you being Obtuse? What’s My Measure? 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500 What is a LINE SEGMENT? A piece of a line that has two endpoints. Row 1, Col 1 What is ACUTE? An angle whose measure is greater than zero and less than 90o. 1,2 What is an acute triangle? 1,3 What is 60o? b a The measure of angle a if angles b and c c are each 60o. 1,4 What is a LINE? A straight path that goes forever in opposite directions. 2,1 What is a VERTEX? The common endpoint shared by the rays that form an angle. 2,2 What is a right triangle? 2,3 What is EQUILATERAL? A triangle whose sides and angles are all congruent. 2,4 What is a RAY? A straight path that begins at one point and extends infinitely in one direction. 3,1 What is OBTUSE? An angle whose measure is greater than 90o and less than 180o. 3,2 What is an obtuse triangle? 3,3 What is SCALENE? A triangle whose sides measure 5cm, 12 cm, and 8 cm. 3,4 What are PARALLEL LINES? Lines that are always the same distance apart and will never intersect. 4,1 What is a PROTRACTOR? A semi-circular tool used to measure angles. 4,2 What is by the third non-acute angle? The distinctive way to name a triangle based on its angle measures. 4,3 What is ISOSCELES? A triangle that has two sides and two angles that are congruent. 4,4 What are PERPENDICULAR LINES? Lines that intersect to form right angles. 5,1 What is 90o? Of 80o, 90o, or 100o, the best measure for the angle shown: 5,2 What is 180o? The sum of the measures of all three angles in a triangle. 5,3 What is 45o, 45o, and 90o? A right triangle with sides measuring 4m, 4m, and 5.5m has these angle measures. 5,4