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Find the surface area of the cone in terms of pie 18 height 12 radius

Find The Surface Area Of The Cone In Terms Of Pie 18 Height 12 Radius class=

Sagot :

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144π cm²

Answer:

Solution given:

diameter (d)= 12cm

radius (r)=12/2=6 cm

slant height(l)=18cm

Now

Total surface area of cone=πr(r+l)π*6(6+18)=144π cm²

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