Formulas
Formula for the area of a rectangle
A = b * h
RECTANGLE
base = 9
height = 10
A = 90
TRIANGLE
base = 8
height = 3
Circle: Find the circumference.
d = 18
A = 56.5
length = 7
width = 5
height = 9
V = 315
Formula for the area of a triangle
A = (b*h) / 2
PARALLELOGRAM
base = 8
height = 7
A = 56
TRIANGLE
base = 5
height = 1.7
A = 4.25
r = 9
A = 254.5
length = 4
width = 8
height = 6
V = 192
Formula for the area of a trapezoid
A = (b1 + b2) * h / 2
PARALLELOGRAM
base = 9.7
height = 9
A = 87.3
TRIANGLE
base = 17
height = 7.6
A = 64.6
Circle: Find the area.
r = 11.8
A = 437.4
length = 12
width = 9
height = 11
V = 1188
Formula for the CIRCUMFERENCE of a circle
C = pi * d
RECTANGLE
base = 49
height = 31
A = 1519
TRAPEZOID
b1 = 7
b2 = 2.2
h = 2
A = 9.2
Circle: Find the circumference.
d = 14
A = 44
length = 25
width = 27
height = 22
V = 14850
Formula for the AREA of a circle
A = pi * r^2
PARALLELOGRAM
base = 92.5
height = 34.7
A = 3209.75
TRAPEZOID
b1 = 4.7
b2 = 4.9
h = 4.3
A = 20.64
Circle: Find the area.
d = 20
A = 314.2
L = 29
W = 24
H = 16
V = 11136