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Geometry-langley

QuestionAnswer
What is an obtuse angle? An angle greater than 90 degrees.
What is a right angle? An angle of exactly 90 degrees.
What is an acute angle? An angle less than 90 degrees.
What is a straight angle? An angle of exactly 180 degrees.
What is a line? A line is a straight path of points that goes on forever in two directions.
What is a plane? A plane is an endless flat surface.
What are perpendicular lines? Perpendicular lines are intersecting lines that form square corners.
What is a ray? A ray is part of a line.
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