The student will identify and draw representations of points, lines, line segments, rays, and angles.
Measurement and Geometry
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investigate the sum of the interior angles in a triangle and determine an unknown angle measure.
identify and describe points, lines, line segments, rays, and angles, including endpoints and vertices; and
identify and describe intersecting, parallel, and perpendicular lines.
The student will classify and measure right, acute, obtuse, and straight angles.
A vertex is the point at which two or more lines, line segments, or rays meet to form an angle. The term vertices is the plural form of vertex.