Surface Area of Prisms
S=Ph+2B
P= Perimeter H= Height B= Base
Volume of prisms
V=Bh
V= Volume B= Base Area H= Height
Base Area of Triangle
B=1/2•bh
B=Base Area
b= Base
h= height
Base area of Square
B=b•h
B= Base Area b= base h= height
Base area of a trapezoid
B=½•h•(b₁ + b₂)
B=Base Area
H= height
b = base
Area of semi circle
A=½• π • r²
A= Area π = Pi = 3.14 r = radius
Area of rectangle
A= b•h
A= area b= base h= height
Area of triangle
A= 1/2 • bh
A= Area b= base h= height
Area of circle
A= π • r²
A= Area π= Pi = 3.14 r= radius
Area of a composite figure
find the area of the decomposed figures, then add them
Volume of a composite figure
(1) decompose the figure,
(2) find the volume of the decomposed figures
(3) add them
Base area of a circle
B = π * r²