cameron9179 cameron9179
  • 22-01-2021
  • Mathematics
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find the total surface area of this cone leaving you answer in terms of pi radius 5 cm

find the total surface area of this cone leaving you answer in terms of pi radius 5 cm class=

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chuity
chuity chuity
  • 22-01-2021

Answer:

70pi cm^2

Step-by-step explanation:

The total surface area of a cone is given by its curved surface area plus its base.

The base area would be

[tex]\pi {r}^{2} [/tex]

so the base area is 25pi cm^2.

The curved surface area is given by

[tex]\pi rl[/tex]

which is pi times 5 times 9 i.e. 45pi cm^2.

The total surface area would therefore be 70pi cm^2, by adding them up together.

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