Angles
What kind of angles are less than 90 degrees?
Acute angles
Triangle with two equal sides
What is isosceles triangle
The angles in a quadrilateral add up to this many degrees...
What is 360
What is the measure of each interior angle in a square?
What is 90
What kind of triangle has equal sides?
Equilateral
What kind of angles share a side?
Adjacent
Quadrilateral
The sum of angles in a pentagon add up to this many degrees...
What is 540
Each interior angle of a regular pentagon has this many degrees...
What is 108
What kind of lines never cross?
What is parallel lines
Corresponding angles
The number of sides a dodecagon has
What is 12
The sum of angles in a decagon add up to this many degrees...
What is 1440
Each interior angle of a regular octagon has this many degrees...
What is 135
What angles are directly across from each other and congruent?
Vertical angles
A pair of angles that add up to 90 degrees are called what?
Complementary
Give an example of a regular polygon (be specific!)
Equilateral triangle, square, stop sign, etc.
What is the formula to find the sum of interior angles?
s = 180(n-2)
The interior angles of a regular 18-sided polygon is this many degrees
What is 160
Give an example of supplementary angles (be specific with angle measures!)
Answers will vary
What kind of angles are equal to a straight angle?
Supplementary angles
How do we classify polygons?
By the number of sides!
The sum of angles in a nonagon add up to this many degrees...
What is 1260
Each interior angle of a regular 20-sided polygon is this many degrees
What is 162
Answers will vary