Mathematics for Elementary Educators - D128 Module 1 & 2 (lines, angles, Pythagorean theory Questions and answers with complete solution graded A+ (Already passed)

line segment - CORRECT ANS part of a line with two endpoints Line - CORRECT ANS extends indefinitely in both directions point - CORRECT ANS has no size, only location ray - CORRECT ANS extends indefinitely in one direction acute angle - CORRECT ANS an angle that measures less than 90 degrees right angle - CORRECT ANS an angle that measures 90 degrees obtuse angle - CORRECT ANS An angle that measures more than 90 degrees but less than 180 degrees straight angle - CORRECT ANS an angle that measures 180 degrees reflex angle - CORRECT ANS an angle that is greater than 180 degrees because the angle is bent beyond the straight line supplementary angles - CORRECT ANS two angles that add up to 180 degrees complementary angles - CORRECT ANS two angles that add up to 90 degrees polygon - CORRECT ANS closed figure with at least three straight sides vertex - CORRECT ANS the point where two sides meet regular polygon - CORRECT ANS a polygon with all sides and all angles equal irregular polygon - CORRECT ANS a polygon with sides that are not all congruent (same size) quadrilateral - CORRECT ANS a four-sided polygon interior angles - CORRECT ANS angles on the inside of polygon that form two adjacent sides sum of interior angles of a polygon - CORRECT ANS 180(n-2). n being the number of sides right angle - CORRECT ANS two 45 degree angles form what kind of angle? acute angle - CORRECT ANS what angle measures less than a right angle? 180 degrees - CORRECT ANS a straight line measures _________ 120 degrees - CORRECT ANS Two angles are supplementary. If one angle measures 60°, what is the measurement of the other angle? 360 degrees - CORRECT ANS What is the sum of the interior angles of a quadrilateral? 65 degrees - CORRECT ANS Two angles are complementary. If one angle measures 25°, what is the measurement of the other angle? 720 degrees - CORRECT ANS What is the sum of the interior angles of a hexagon? isosceles triangle - CORRECT ANS a triangle with two equal sides equilateral triangle - CORRECT ANS a triangle with 3 congruent sides, all sides equal scalene triangle - CORRECT ANS a triangle with no congruent sides, no sides equal Triangle Inequality Theorem - CORRECT ANS The sum of any two side lengths of a triangle is greater than the third side length Triangle Inequality Theorem - CORRECT ANS d + e f