FSA Flashcards
(38 cards)
what do complementary angles equal?
90
Supplementary angles =
180
What is an adjacent angle?
Share a vertex and a side, but no interior points
what do congruent angles have?
The same measure
vertical angles are
congruent
what is sin?
Opposite/Hypotenuse
What is cos?
c= adjacent/hypotenuse
What is tan?
t= opposite/adjacent
use inverse-1 sign when…
finding angle of a measure in a right triangle
what is the pythagorean theorem?
to find hypotenuse of right triangle
what is the slope formula?
y2-y1/x2-x1
what is the equation of a circle?
c= (h,k) (x-h)2 + (y-k)2
what is the rule for reflection of x-axis?
(X,y) = (x,-y)
Reflection of y-axis
x,y = -x,y
reflection of y=x
x,y = y,x
reflection of y=-x
X,Y = -y,-x
rotation 90 degree cc
x,y = -y,x
180 rotation
x,y = -x,-y
rotation 270
x,y = y,-x
What is the midpoint formula?
m= x1+x2/2 y1+y2/2
What does an equilateral triangle have
Three equal angles
What does an isosceles triangle have
Two equal angles
What does a scalene triangle have
Three different angles
What does the sum of interior angle measure in a triangle
180
