Trig & Coordinate Geom Quiz
What are the properties of rectangles?
the diagonals are the same length & bisect each other.
What are the properties of squares?
the diagonals are the same length, bisect each other, and are perpindicular.
How do you tell if a line bisects another one?
if the midpoints are the same.
How can you tell if two lines are perpindicular?
do the equation (m x m). If it equals -1, they're perpindicular.
What is the equation of a circle in standard position?
x^2 x y^2 = r^2
How do you fgind the shortest distance between a point and a line?
Flip the slope (sign & fraction) and algebra for b. substitue lines into each other to find POI. calculate distance from POI to point.
What is a median?
a line from a vertex to a midpoint
What is an altitude?
A line from a vertex to a right angle
What is a bisector?
a line extending at a right angle from a midpoint