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Angles and Triangles

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congruent angles
Angles that contain the same number of degrees.
right angle
An angle that has a square corner because it is fromed by perpendicular lines. All right angles are 90*.
acute angles
Angles that are less than 90*.
obtuse angles
Angles that are more than 90 but less than 180.
straight angles
Angles that are 180*.
triangles
They have 3 angles. The sum of the angles of any triangle is 180*.
( A+ B+ C=180*)
right triangle
A triangle that has one right angle.
isosceles triangle
A triangle that has 2 congruent sides.
equilateral trianlge
A triangle that has 3 congruent sides.