Transformations of Cosine
Move the sliders that represent the constants in the graph y=c+a*cos(b(x-d)). What do you notice about how the graph changes when the different sliders are moved? What does this tell you about how the constant affects he graph?
Tangents To Cicle
CCSS High School: Geometry (Congruence) Volume 1
Zbroj do 100
Cyclic quadrilaterals exterior angles