Math, asked by sp6281685, 2 days ago

Find the total surface area of a cone whose radius is 5 cm and height is 12 cm​

Answers

Answered by itznikammi
9

A≈282.74cm²

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Answered by anthonycharles
0

Answer:

282.74 cm^2

Step-by-step explanation:

A=\pirL+\pir^2

so that means we still need to find the length and the equation for that is L=√r^2+h^2 so we plug in the radius and the height that we already have and we have made an equation that looks long but it's not and it is this

A=\pir(r+√h^2+r^2)=\pi×5×(5+√12^2+5^2)≈282.74334

which round to 282.74

so that means the total surface area of the cone is 282.74 cm^2

And please let me know if this was any help.

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