Question

Find the total surface area of the cone leave your answer in terms of pi 4 as height and 3 radius

Answer 1

`\huge \boxed {\boxed{ \mathrm{Answer࿐}}}`

Given :

• height = 4 units
• radius = 3 units

Solution :

`\mathrm{Slant \: \: height \: ( l)= \sqrt{ {r}^(2) + {h}^(2) } }`

• 
  `l = \sqrt{3 {}^(2) + {4}^(2) }`

• 
  `l = √(9 + 16)`

• 
  `l = √(25)`

• 
  `l = 5`

Now,

`\large \boxed{ \mathrm{Area = \pi r(l + r)}}`

• 
  `\pi * 3 * (5 + 3)`

• 
  `\pi * 3 * 8`

• 
  `24\pi`

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`\mathrm{ \#TeeNForeveR}`