miafarnham29 miafarnham29

29-03-2016
Mathematics

contestada

A cone has a base radius 10 cm and slant height 18 cm.
Work out the surface area of the cone.
Give your answer in terms of pi (π).

Respuesta :

olemakpadu olemakpadu

29-03-2016

Surface Area of Cone = πrl

= π*10*18 = 180π

Surface Area = 180π cm²

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