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Math (Geometry)

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Acute Angle

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Terms in this set (143)

This is an angle whose measure is between 0 degrees and 90 degrees is called an ____ ____.

A triangle in which all of the angles are smaller than 90° is called an ____ ____.

Adjacent Angles

These are two angles in a plane which share a common vertex and a common side but do not overlap.

Adjacent Supplementary Angles

These are two angles that add up to 180° that share a common vertex.

Alternate Exterior Angles

These are two angles that are located outside two parallel lines on opposite sides of the transversal.

Alternate Interior Angles

These are two angles that are located between two parallel lines on opposite sides of the transversal.

The height of a triangle. The segment drawn from a vertex to the opposite side forming a right angle.

These are two rays sharing a common endpoint. They are typically measured in degrees.

A segment drawn from the center of a regular polygon perpendicular to the side of the polygon.

An ___ is a portion of a circle. There are three types of these: minor, major, and semicircle. A semicircle measures 180 degrees, a minor one is shorter than a semicircle, and a major one is longer than a semicircle.

This is the length of an arc of a circle. It is found by dividing the angle by 2 pi and then multiplying that by the circumference of the circle.

This is the space inside a geometric shape, such as a square or a circle.

Area Of A Circle

This is found by multiplying pi by the radius squared.

This is another name for the coordinate plane, named for the French mathematician Rene Descartes.

An angle in a circle whose vertex is at the center of the circle is called a ______ angle.