Geometry
FORMULAS
Semester 2
Total Surface Area Formulas
Area Formulas
Parallelogram
A = bh
Prism
T = Ph+2B
Rectangle
A = bh
Cylinder
T = 2  rh+2  r2
Square
A = s2
Pyramid
T=
Triangle
A=
1
bh
2
Cone
T =  rl+  r2
Rhombus & Kite
A=
1
d1d2
2
Sphere
T= 4  r2
Trapezoid
A=
1
h(b1 + b2)
2
Regular Polygon
1
A = Pa
2
Prism
V = Bh
Circle
A =  r2
Cylinder
V =  r2 h
Pyramid
V=
Cone
V =  r2 h
Sphere
V=
1
Pl+B
2
Volume Formulas
Area of a sector =
n
• r2
360
Distance, Midpoint, & Slope
d=
 x2  x1  +  y2  y1 
2
2
 x + x2  ,  y1 + y2 
M= 1
2
m=
 y2  y1 
 x 2  x1 
2
1
Bh
3
1
3
4
3
 r3
Other Formulas and Equations
S = 180(n – 2)
C = 2 r
(x – h)2 + (y – k)2 = r2
Length of arc =
n
•2  r
360