Answered

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if the curved surface area only of a solid hemisphere is 2772 sqcm. then find its total surface area to the nearest square unit.

Sagot :

Given:

The curved surface area only of a solid hemisphere is 2772 sqcm.

Required:

Now we need to find its total surface area to the nearest square unit.

Explanation:

The formula to find the curved surface area is

[tex]a=2\pi r^2[/tex]

we have curved surface area so put the value and find the radius

[tex]\begin{gathered} 2772=2*3.14*r^2 \\ 441.40=r^2 \end{gathered}[/tex]

now we need to find the total surface area

the formula to find the total surface area is

[tex]A=3\pi r^2=3*3.14*441.40=4158\text{ sqcm}[/tex]

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