3.4: parallel lines and the triangle - angle sum theorem Flashcards
1
Q
The two nonadjacent interior angles.
A
Remote interior angles
2
Q
At least two sides congruent.
A
isosceles triangle
3
Q
All sides congruent.
A
equilateral triangle
4
Q
All angles congruent.
A
equiangular triangle
5
Q
All angles acute.
A
acute triangle
6
Q
One obtuse angle.
A
obtuse triangle
7
Q
One right angle.
A
right triangle
8
Q
No sides congruent.
A
scalene triangle
9
Q
An angle formed by a side and an extension of an adjacent side.
A
exterior angle of a polygon
