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Formulas of chapter. 13

Answer» CSA of frustum = π(R+r)l
Volume of embankment = π(R^2-r^2)h
Volume of sphere = 4/3πr^3
Volume of cell = 4/3π(R^3-r^3)
CSA of cone = πrl
TSA of cone = πr( l+r)
Volume of cone= 1/3πr^2h
CSA of cylinder = 2πrh
Slant height = √h^2+r^2
Volume of cube= a^3
Volume of frustum of cone = 1/3πh(r1^2+r2^2+ r1r2)


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