Matching Pairs Shapes, Angles, and LinesOnline version Match the card with the word and definition to the picture card by Mary Hediger 1 line segment : a line with stopping points on both ends 2 obtuse angle : an angle that is more than 90° and less than 180° 3 parallel lines : lines that never cross and run exactly side by side to each other 4 perpendicular lines : lines that cross at right angles to each other 5 symmetrical : looks exactly the same on one side as on the other 6 hexagon : polygon with 6 sides 7 intersecting lines : lines that cross 8 straight angle : the angle of a straight line that measures 180° 9 right angle : an angle that is exactly 90° 10 square : polygon with 4 sides of equal length and 4 right angles 11 pentagon : polygon with 5 sides 12 isosceles triangle : a triangle with two sides that are equal length 13 parallelogram : a polygon with two sets of parallel sides, and opposite sides are the same length 14 rectangle : polygon with 4 sides, 4 right angles, and opposite sides are parallel and equal length 15 trapezoid : a polygon with 4 sides and only one pair of opposite parallel sides 16 line of symmetry : the line along which a shape can be divided and both sides look exactly the same 17 scalene triangle : a triangle where all sides are different lengths 18 continuous line : a line with arrows on both ends 19 octagon : polygon with 8 sides 20 rhombus : a polygon with two sets of parallel sides and all sides are the same length 21 acute angle : an angle that is less than 90° 22 triangle : polygon with 3 sides 23 ray : a line with a point at one end and a continuing arrow at the other end 24 right triangle : a triangle with one right angle
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