proofs
what do you first look for when you have parallel lines?
Alternate interior and alternate exterior angles.
When reflecting over the X-Axis
(x,-y) change y
what is the variable for scale factor and how do you find it?
image/pre image
what does pythagorean theorem do with triangles
determines the triangle type
which property makes a z? which makes a C?
alternate interior. Corresponding
When reflecting over the y axis
(-x,y) change x
how do you define dilation?
same shape, same angles OR similar but not congruent
if a2+b2=c2 then it is a _____ triangle
right
what are the postulates for when you are finding congruence of triangles? which can only be used when its an angle-side-side with a right angle?
ASA, SSS, AA, AAS.
HL
When y=x
(y,x) swap
what is the scale factor if
AB=4 BC=8 AC=2 and A'B'=2 B'C'=4 A'C'=1
1/2
if a2+b2<c2 then it is a _____ triangle
Obtuse
Which cannot be a postulate when finding the congruence of a triangle?
SSA
When y=-x
(-y,-x) swap and change sign
what is the point where you dilate the figure from?
Point of dialation
if a2+b2>c2 then it is a _____ triangle
Acute