geometry Flashcards
(13 cards)
1
Q
area of triangle
A
1/2 x base x height
2
Q
area of circle
A
pie x r squared
3
Q
circumference of circle
A
2 x pie x r
4
Q
Pythagorean theorem
A
a squared + b squared = c squared
5
Q
volume of a rectangular prism
A
l x w x h
6
Q
volume of a cylinder
A
pie x r squared x h
7
Q
surface area of a sphere
A
4 x pie x r cubed
8
Q
volume of a sphere
A
4/3 x pie x r squared
9
Q
distance formula
A
(x2-x1)squared + (y2-y1)squared
10
Q
midpoint formula
A
(x1+x2)/2, (y1+y2)/2
11
Q
slope formula
A
(y2-y1)/(x2-x1)
12
Q
parallel lines have…
A
equal slopes
13
Q
perpendicular lines have…
A
reciprocal slopes
