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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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