Question

please tell me the formulas of all the surface areas of all figs

Answer 1

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⇒ CSA of cuboid = 2(bh + hl)

⇒ TSA of Cuboid = 2(lb + bh + hl)

⇒ Volume of Cuboid = Length × Breadth × Height

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⇒ CSA of cube = 4L^2

⇒ TSA of Cube = 6L^2

⇒ Volume of Cube = Length^3

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⇒ CSA of  Right Circular Cylinder = 2πrh

⇒ TSA of  Right Circular Cylinder = 2πr(r + h)

⇒ Volume of  Right Circular Cylinder = πr^2h

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⇒ CSA of Right Circular Cone = πrl

⇒ TSA of Right Circular Cone  = πr(r + l)

⇒ Volume of Right Circular Cone  = 1/3 (πr^2h)

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⇒ CSA of Sphere = 4πr^2

⇒ TSA of Sphere   = 4πr^2

⇒ Volume of Sphere   = 4/3 (πr^3)

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⇒ CSA of Hemisphere = 2πr^2

⇒ TSA of  Hemisphere    = 3πr^2

⇒ Volume of  Hemisphere  = 2/3 (πr^3)

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⇒ CSA of Frustum = πl(r + R)

⇒ TSA of  Frustum  = πl(r + R) + p(r^2 + R^2)

⇒ Volume of  Frustum  = 1/3 πh(r^2 + R^2 + rR)

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⇒ CSA of Right Circular Hollow Cylinder = 2πh(r + R)

⇒TSA of Right Circular Hollow Cylinder  = 2π(r + R) (h + R – r)

⇒  Volume of Right Circular Hollow Cylinder  = πh(R^2 – r^2)

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