Complementary Angles
Equal 90
Supplementary Angles
Equal 180
Vertical Angles
- Right across from each other
* Equal
Linear pairs
On a line, equal 180
Difference between line and a segment?
Line goes on forever, segment has endpoints
Scalene
All sides are different lengths
Isosceles
Two sides and 2 angles of equal length
Equilateral
All sides the same length
Equiangular
All angles are the same
Right triangle
1 angle equals 90
Congruency Statements
Ex: ⚠️ABC=⚠️DEF
Hypotenuse
Longest side of a right triangle (other sides are the legs)
Proving Triangles =
ASA AAA SSS SAS SSA HL
Shape Rotation
Turn the paper 90-180-270
Reflecting a Shape
X axis- x remains the same, y is the opp
Y axis- y remains the same, x is the opp
Y=-x -swap and change sides
Y=x- swap
Translating a Shape
Ex: move the shape x up and y down
Find missing angle
Corresponding, alt interior, etc
Exterior angle theorem
The outside angle of a triangle must equal the 2 opp. Angles combined
Sum of the angles around a point
=360
Construct an equilateral triangle
Make compass size of segment
Create circle from each point
Connect points
Properties of Parallelograms
Parallelogram
Square
Rectangle
Rhombus
Supplementary Angles
Equal 180
Vertical Angles
- Right across from each other
* Equal
Linear pairs
On a line, equal 180
