• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/30

Click to flip

### 30 Cards in this Set

• Front
• Back
 triangle has three acute angles Acute triangle angles are nonadjacent interior angles that lie on opposite sides of the transversal. Alternate interior angles no diagonal contains points outside the polygon. polygon is convex diagonal contains points outside the polygon. polygon is concave angles lie on the same side of the transversal t and in corresponding positions relative to l and m. Corresponding angles triangle is a triangle whose angles are all congruent or polygon whose angles are all congruent. Equiangular triangle or polygon a triangle whose sides are all congruent or a polygon whose sides are all congruent. Equilateral triangle or polygon an angle formed by a side and an extension of an adjacent side Exterior angle of a polygon statements and reasons are aligned in columns. a two-column proof statements and reasons are connected in sentences a paragraph proof arrows show the logical connections between the statements flow proof a figure is drawn on a coordinate plane and the formulas for slope, midpoint, and distance are used to prove properties of the figure coordinate proof involves the use of indirect reasoning. indirect proof triangle is a triangle that has at least two congruent sides. Isosceles triangle triangle has one obtuse angle Obtuse triangle form for a nonvertical line with slope m and through point (x1, y1) is y − y1 = m(x − x1). Point-slope form polygon that is both equilateral and equiangular. Its center is the center of the circumscribed circle. Regular polygon the two nonadjacent interior angles corresponding to each exterior angle of a triangle. Remote interior angle triangle contains one right angle. The side opposite the right angle is the hypotenuse and the other two sides are the legs. Right triangle angles lie on the same side of the transversal t and between and m. Same-side interior angles triangle has no sides congruent Scalene triangle form of a linear equation is y = mx + b, where m is the slope of the line and b is the y-intercept. Slope-intercept form form of a linear equation is Ax + By = C, where A, B, and C are integers and A and B are not both zero. Standard form of a linear equation a line that intersects two coplanar lines in two points. Transversal •corresponding angles are congruent. •alternate interior angles are congruent. •same-side interior angles are supplementary. If two parallel lines are cut by a transversal, then •corresponding angles are congruent. •alternate interior angles are congruent. •same-side interior angles are supplementary. Two lines cut by a transversal are parallel if equals the sum of the measures of its two remote interior angles. The sum of the measures of the angles of a triangle is 180. The measure of each exterior angle of a triangle equals... start at any vertex and list the vertices consecutively in a clockwise or counterclockwise direction. To name a polygon (n − 2)180. The sum of the measures of the angles of an n-gon 360 The sum of the measures of the exterior angles of an n-gon, one at each vertex