GEOMETRY VOCAB

ACUTE ANGLE

• An acute angle is an angle smaller than a right Angle (less than 90°).

OBTUSE ANGLE

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

RIGHT ANGLE

• an angle of 90°, with perpendicular straight lines

STRAIGHT ANGLE

• an angle of 180°.

VERTICAL ANGLE

• Are the angle oppositeof each other

ADJACENT ANGLE

• are two angles that have a common vertex and a common side

COMPLEMENTARY ANGLE

• either of two angles whose sum is 90°.

SUPPLEMENTARY ANGLE

• either of two angles whose sum is 180°.

CORRESPONDING ANGLES

• the angles that occupy the same relative position

TRANSVERSAL

• A line that crosses at least two other lines.

ACUTE TRIANGLE

• acute triangle, all angles are less than 90 degrees

RIGHT TRIANGLE

• a triangle with a right angle.

OBTUSE TRIANGLE

• A triangle that contains an angle greater than 90 degrees

SCALENE TRIANGLE

• all of the angles are not the equal

ISOSCELES TRIANGLE

• Two of the angles are the equal

EQUILATERAL TRIANGLE

• All angles are the equal

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