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Unit 1

Unit 1 terminology

QuestionAnswer
A POINT that divides a segment into two congruent parts Midpoint
A segment that divides an angle into two congruent angles Angle bisector
A segment that divides another segment into two congruent segments Segment bisector
Lines that form right angles Perpendicular
An angle whose measure is less than 90 degrees Acute angle
An angle whose measure is greater than 90, but less than 180 degrees Obtuse angle
An angle measure that is exactly 180 degrees Straight angle
An angle whose degree measure is exactly 90 degrees Right angle
Angles whose measures are the same/equal Congruent angles
Two angles that share a common side Adjacent angles
A pair of adjacent angles where the sum is 180 degrees Linear pair
Angles that are formed from intersecting lines , the angles opposite of each other are congruent Vertical angles
Triangle angle sum theorem states that the sum of the interior angles of a triangle is... 180 degrees
Which type of triangle has each angle less than 90 degrees Acute triangle
Which type of triangle has 3 acute equal angles Equiangular triangle
Which type of triangle has one 90 degree angle Right Triangle
Which type of triangle has one angle greater than 90 degrees Obtuse triangle
Which triangle has two congruent sides and angles opposite (base angles) congruent Isosceles triangle
Which type of triangle has two congruent sides, congruent base angles and a right angle Isosceles right triangle
Which type of triangle has three congruent sides Equilateral triangle
Which type of triangle has NO congruent sides Scalene triangle
When two figures have the same shape and same size Congruent
Created by: Tbowe78
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