geometry Flashcards
1
Q
quadratic formula
A
x=-b plus or minus the square root of b squared - 4ac over 2a
2
Q
distance formula
A
square root of (x2-X1) squared + (y2-y1) squared
3
Q
area of a square
A
s squared
4
Q
area of a rhombus
A
.5 x d1 x d2
5
Q
what is the area of a rectangle
A
lw
6
Q
area of a parallelogram
A
bh
7
Q
area of a trapezoid
A
.5 x (b1+b2)h
8
Q
area of a circle
A
pie r squared
9
Q
circumference of a circle is
A
pie r times 2
10
Q
midpoint formula
A
x1+x2/2, y1+y2/2
