# Show obtuse and angle as opposed to straight

Classified in Mathematics

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acute angle is an angle whose measure is greater than 0° and less than 90°

acute triangle is a triangle with 3 acute angles

adjacent angles are angles that have a common vertex and side, but no common Interior points

angle is formed by two rays with a common endpoint called the vertex

complementary Angles are angles Whose measures add up to 90°

congruent Angles are angles That have the same measure

equilateral Triangle is a triangle With 3 congruent sides

isosceles triangle is a triangle with at least 2 Congruent sides

midpoint is the point that divides a segment into two congruent segments

obtuse angle is an angle whose measure is greater than 90° and less than 180°

obtuse triangle is a triangle with an obtuse angle

parallel lines are lines in a plane that never meet

perpendicular Lines are lines that Intersect at 90° angles

right angle is an angle whose measure is 90°

right triangle is a triangle with a right angle

scalene Triangle is a triangle With no congruent sides

straight angle is an angle whose measure is 180°

supplementary Angles are two angles Whose measures add up to 180°

transversal is a line that intersects any two or more other lines

Triangle Inequality Theorem - the sum of The lengths of any two sides of a triangle is greater than the length of the Third side

Triangle Sum Theorem - the angle Measures of a triangle add up to 180°

vertical angles are the nonadjacent angles formed by two intersecting lines