Angles
What is a 90 degree angle called
Right angle
What is the angle sum of a polygon with 3 sides
180
what are vertical angles
What is an obtuse angle
What is an angle over 90 degrees
What are the properties of quadrilaterals
Has to have 4 sides, has to be closed, the opposite sides are equal and parallel, and the sum of any two adjacent angles is 180°
what is the angle sum for a polygon with 12 sides
1800 degrees
what are corresponding angles
a pair of angles that is on the same side of two lines cut by a transversal line.
What is a complementary angle
Two angles that add up to 90 degrees
What are 4 properties of a polygon
Closed sides, 2d, straight sides, have to have at least 3 sides.
How do you find the interior angles of a polygon
180(n-2) is the formula
what are parallel lines
2 lines that go on forever and never intersect
What is an acute angle
What is an angle smaller than90 degrees
How do you classify triangles by sides
All sides are equal it is equilateral, 2 sides same length it is isosceles, if it has no equal side it is SCALENE
How can I find the measure of a missing angle in a polygon?
Total Angle sum minus all the known angles added up
What is a transversal line
one line that goes in through two lines
what is a benchmark angle
angles that can be used as references
how can you classify triangles by their angle
an acute triangle all three angles are acute, A right triangle contains one right angle and two acute angles, And an obtuse triangle contains one obtuse angle.
what is the angle sum of a polygon of 13 sides
1980 degrees
How can you find the measures of different angles given the measure of one
A protractor