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Perimeter of a square
p = 4s
Area of a square
Diagnol of a square
d = s√2
Perimeter of a rectangle
p = 2l+2w
Area of a rectangle
a = wl
Diagonal of a rectangle
d = √(l^2 + w^2)
Perimeter of a triangle
p = s1 + s2 + s3
Area of a triangle
a = 1/2(b)(h)
Pythagorean theorem
a^2 + b^2 = c^2
Radius of a circle
r = 1/2(d)
Diameter of a circle
d = 2r
Circumference of a circle
c = 2∏r
area of a circle
a = ∏(r)^2
Volume of a cube
v = s^3
Volume of a rectangle box
v = lwh
Volume of a cylinder
v = ∏(r)^2(h)
Surface area of a cube
sa = 6s^2
Surface area of a rectangular box
sa = 2lw + 2wh + 2lh
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