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KATRIN_1 [288]
3 years ago
8

The slant height of a cone is 8.45cm

Mathematics
1 answer:
alekssr [168]3 years ago
7 0

\bf \underline{ \underline{Given : }}

  • Slant height,l = 8.45 cm

  • Diameter of base = 14 cm

\bf \underline{ \underline{To \: be \: calculated : }}

Calculate the curved surface area of the cone .

\bf \underline{ \underline{Formula \: applied : }}

Curved surface area of cone = πrl

\bf \underline{ \underline{Solution : }}

First of all,

Radius = Diameter/2

=> Radius,r = 14/2

=> Radius,r = 7 cm

Now,

\sf{Curved \:  surface \:  area \:  of \:  cone =\pi rl}

\sf \: \implies \:  \dfrac{22}{ \cancel7}   \times \cancel7 \times 8.45

\sf\implies22 \times 8.45

\sf \implies 185.9 \:  {cm}^{2}

Hence,the Curved surface area of cone is 185.9 cm².

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