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Leona [35]
3 years ago
5

The surface area of a cone with radius r units and slant height s units is shown below:

Mathematics
2 answers:
Ganezh [65]3 years ago
4 0
Surface area of a cone = π{rs+r²}<br />                                     =πr{s+r}<br />part 1:if π is 6 units and s is 4 units then r would be 3.14 ×6 {4+6}<br /><br />part 2: area of a cone = 3.14 ×6×10<br />                                  =31.4×6<br />                                    = 188.4 units²<br />the surface area = 188.4 <br />units²<br /> hope i helped 
Oliga [24]3 years ago
3 0
S.A=π(rs+r^{2} )
Substituting for values of x;
S.A=3.14(6*4+6^{2})
S.A=188.4 units
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