Types of Angles
Angles that add up to 180 degress
Supplementary
All angles of triangles add up to _____ degress.
180 degrees
Name a shape with four 90 degrees angles and 4 sides that are conguent and two sets of paralells.
Square
Do the follow side lengths create a triangle? 4,8,2
no
What cross-section is created by slicing a sphere?
circle
Angles that add up to 90 degress
Complementary
A triangle has the following two angles; 70 degrees and 20 degress. What is the third angle?
90 degrees
Name a shape with three sides that has one 90 degree angle and two acute angles.
Right Triangle
Do the following side lengths create a triangle?
12, 4, 9
yes
What cross-section is create when slicing a cube paralell to the base?
square
Angles that are across from each other
Vertical Angles
True or false. The following angles create a triangle: 70, 60, 30.
false
Name a shape that has 4 90 degree angles and two sets of parallel sides. One set of side is longer than the other.
Rectangle
True or false: The Triangle Inequality Theorem states that the sum any two sides of a triangle MUST be greater than the thrid.
True
What cross-section is creating when slicing a cone perpendicular to the base?
Triangle
Angles that share a common ray
Adjacent
A triangle has an angle of 72 degrees and an angle of 12 degrees. Will this make one, many or no triangle?
more than one
Name a shape that has three congruent sides and three 60 degree agles
Equilateral Triangle
Given the two side length; 5 and 11, what is the shortest possible side that would create a triangle?
7
What cross-section is created when slicing a rectangular pyramid horizontally?
Rectangle
Angles relationships that are congruent
Vertical Angles
Name three types of triangles based off their side lengths.
Scalene, Isosceles, Equilateral
Name a shape that has two sets of congruent sides that are NOT parallel with one set of congruent angles.
kite
Given the side lengths 3 and 7, list the possible lengths of the third side? List ALL possible lengths.
4,5,6,7,8,9
What cross-section is created when slicing a sphere exactly in the middle?
great circle