Ch. 3 Vocab
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13 terms
Terms | Definitions |
|---|---|
 alternate interior angles | nonadjacent interior angles that lie on opposite sides of the transversal |
| concave polygon | a diagonal contains points outside the polygon |
| convex polygon | no diagonal contains points outside the polygon |
| corresponding angles | lie on the same side of the transversal and in corresponding positions relative to the parallel lines |
| equiangular triangle | angles are all congruent |
| equilateral triangle | sides are all congruent |
| exterior angle of a polygon | an angle formed by a side and an extension of an adjacent side |
| isosceles triangle | has at least two congruent sides and angles |
| polygon | closed plane figure figure with at least three sides that are segments |
| remote interior angles | two nonadjacent interior angles corresponding to each exterior angle of a triangle |
| same-side interior angles | lie on the same side of the transversal and between the two parallel lines |
| scalene triangle | no sides congruent |
| transversal | line that intersects two coplanar lines in two points |
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