identify points, lines, line segments, rays, angles, and perpendicular and parallel lines

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identify points, lines, line segments, rays, angles, and perpendicular and parallel lines

identify and draw one or more lines of symmetry, if they exist, for a two-dimensional figure

apply knowledge of right angles to identify acute, right, and obtuse triangles

classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size

illustrate the measure of an angle as the part of a circle whose center is at the vertex of the angle that is "cut out" by the rays of the angle. Angle measures are limited to whole numbers

illustrate degrees as the units used to measure an angle, where 1/360 of any circle is one degree and an angle that "cuts" n/360 out of any circle whose center is at the angle's vertex has a measure of n degrees. Angle measures are limited to whole numbers

determine the approximate measures of angles in degrees to the nearest whole number using a protractor

draw an angle with a given measure

determine the measure of an unknown angle formed by two non-overlapping adjacent angles given one or both angle measures

identify relative sizes of measurement units within the customary and metric systems

convert measurements within the same measurement system, customary or metric, from a smaller unit into a larger unit or a larger unit into a smaller unit when given other equivalent measures represented in a table

solve problems that deal with measurements of length, intervals of time, liquid volumes, mass, and money using addition, subtraction, multiplication, or division as appropriate