Intersecting lines have one point in common.
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A ray is part of a line. It has one endpoint and extends indefinitely in one direction.
Solve addition and subtraction problems to find unknown angle measures on a diagram in practical and mathematical problems, (e.g., by using an equation with a symbol for the unknown angle measure).
A right angle measures exactly 90 degrees.
The student will measure right, acute, obtuse, and straight angles.
The student will identify and draw representations of points, lines, line segments, rays, and angles.