Math, asked by rabbiyadar, 9 months ago

Q. Curved surface area of a cone with height=4cm and radius= 3cm.

Answers

Answered by dewanganajay1875
1

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Answered by Anonymous
5

h = 4cm \\ r = 3cm \\ l =  \sqrt{ {h}^{2} +  {r}^{2}  }  \\ l =  \sqrt{ {4}^{2}  +  {3}^{2} }  \\ l =  \sqrt{16 + 9}  \\ l =  \sqrt{25}  \\ l = 5cm\\\\ \\ CSA = \pi rl \\ CSA= 3.14 \times 3 \times 5 \\ CSA= 47.1c {m}^{2}

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