formulas Flashcards
1
Q
distance formula
A
√(X1-X2)^2 + (Y1-Y2)^2
2
Q
midpoint formula
A
x1 + x2 , y1 + y2
———- ———–
2 2
3
Q
slope formula
A
y2 - y1
m = ————-
x2 - x1
4
Q
n =
A
of sides on polygons
5
Q
sum of interior angles formula:
A
180(n-2)
6
Q
measure of 1 exterior angle:
A
360/n
7
Q
measure of 1 interior angle
A
180(n-2)/n
