1.

Find the total surface area of a cone whose base diameter is 8.4 cm and slantheight is 14.2 cm​

Answer»

Step-by-step explanation:

50

=

π(14)(50)=

2200cm

2

πr(r+

l)=

π(14)(14+

50)=

2816cm

2

=

radius= 14

2

r 2

=

91cm

=

π(35)(91)=

10010cm

2

=

πr(r+

l)cm

2

=

π(35)(35+

91)=

13860cm

2



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