Geometry Vocabulary

What is an acute angle?

• An acute angle is an angle that measures less than 90 degrees.

• An acute angle is an angle that measures more than 180 degrees.

• An acute angle is an angle that measures exactly 90 degrees.

• An acute angle is an angle that measures more than 90 degrees.

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What is an obtuse angle?

• An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

• An obtuse angle is an angle that measures more than 180 degrees.

• An obtuse angle is an angle that measures exactly 90 degrees.

• An obtuse angle is an angle that measures less than 90 degrees.

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What is a right angle?

• An angle that measures exactly 90 degrees.

• An angle that measures more than 90 degrees.

• An angle that measures less than 90 degrees.

• An angle that measures exactly 180 degrees.

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What is a straight angle?

• An angle that measures more than 180 degrees.

• An angle that measures exactly 90 degrees.

• An angle that measures exactly 180 degrees.

• An angle that measures less than 180 degrees.

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What is a line segment?

• A line segment has infinite length.

• A line segment is a curved line.

• A line segment has only one endpoint.

• A line segment is a part of a line that is bounded by two distinct endpoints.

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What is a line?

• A line is a curved path that extends infinitely in both directions.

• A line is a straight path that extends infinitely in both directions.

• A line is a two-dimensional shape with length but no width or height.

• A line is a closed shape with three or more sides.

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What is a ray?

• A ray is a line that starts at a point and extends infinitely in one direction.

• A ray is a line segment with a fixed length.

• A ray is a line that starts at a point and extends infinitely in both directions.

• A ray is a curved line that changes direction at every point.

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What is a point?

• A point is a small dot on a surface.

• A point is a precise location in space that has no size or dimension.

• A point is a unit of measurement in geometry.

• A point is a line segment with two endpoints.

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What is a midpoint?

• The point that divides a line segment into four equal parts.

• The point that divides a line segment into three equal parts.

• The point that divides a line segment into two equal parts.

• The point that divides a line segment into two unequal parts.

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What is a plane?

• A plane is a type of tool used for smoothing wood surfaces.

• A plane is a mathematical term used to describe a flat surface.

• A plane is a type of vehicle used for air travel.

• A plane is a flat, two-dimensional surface.

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