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Formulas for calculating the area and surface area of various geometric shapes, including rectangles, triangles, circles, cylinders, cones, and spheres. The document also includes formulas for the lateral surface area of truncated cones.
Typology: Schemes and Mind Maps
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S h a p e S Fo r m u l a
Area = length x width A = lw
Area = 1/2 of the base x the height a = 1/2 bh Perimeter = a + b + c (add the length of the three sides)
Area = πr^2
Area = 2lw + 2lh + 2wh
d
r
w l
h
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S h a p e S Fo r m u l a
Area of Base + Top 2 x π r^2 Area of Shell π r^2 x h
Area = πr^2 + πrs πrs where s = r 2 + h^2
π (R + r) s where s = h^2 + (R – r)^2
Area = 4πr^2
r
h
r
r
h^ s
R – r
r
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