Find the total surface area of a cone whose radius is 5 cm and height is 12 cm
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Answered by
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A≈282.74cm²
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Answered by
0
Answer:
282.74 cm^2
Step-by-step explanation:
A=rL+r^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=r(r+√h^2+r^2)=×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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