Question

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

Answer 1

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.

Step-by-step explanation:

The formula to find the curved surface area is

`a=2\pi r^2`

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

`\begin{gathered} 2772=2*3.14*r^2 \\ 441.40=r^2 \end{gathered}`

now we need to find the total surface area

the formula to find the total surface area is

`A=3\pi r^2=3*3.14*441.40=4158\text{ sqcm}`