
Find the total surface area of the hemisphere whose radius is 35m.
Answer
555.3k+ views
Hint – In order to solve this problem use the formula of curved surface area of the hemisphere and put the value of radius and get the answer to this problem.
Complete step-by-step solution -
The above diagram is of a hemisphere of radius 35 m.
We know that the Curved surface area of the hemisphere is $2\pi {r^2}$.
So, on putting the value of r = 35m (given) we get the value of radius as,
CSA = $2\pi {r^2}$=$2 \times \dfrac{{22}}{7}{(35)^2}$ Used $\pi = \dfrac{{22}}{7}$
CSA =$7700{m^2}$.
Hence, the curved surface area of the hemisphere of radius 35m is $7700{m^2}$.
Note – In this problem you need to know the formula of the curved surface area of the sphere then half of that will be the curved surface area of the hemisphere. The area of the outer surface of the hemisphere is called the curved surface area of the hemisphere.
Complete step-by-step solution -

The above diagram is of a hemisphere of radius 35 m.
We know that the Curved surface area of the hemisphere is $2\pi {r^2}$.
So, on putting the value of r = 35m (given) we get the value of radius as,
CSA = $2\pi {r^2}$=$2 \times \dfrac{{22}}{7}{(35)^2}$ Used $\pi = \dfrac{{22}}{7}$
CSA =$7700{m^2}$.
Hence, the curved surface area of the hemisphere of radius 35m is $7700{m^2}$.
Note – In this problem you need to know the formula of the curved surface area of the sphere then half of that will be the curved surface area of the hemisphere. The area of the outer surface of the hemisphere is called the curved surface area of the hemisphere.
Recently Updated Pages
Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 English: Engaging Questions & Answers for Success

Master Class 11 Social Science: Engaging Questions & Answers for Success

Master Class 11 Biology: Engaging Questions & Answers for Success

Master Class 11 Physics: Engaging Questions & Answers for Success

Trending doubts
Why is there a time difference of about 5 hours between class 10 social science CBSE

Fill the blanks with proper collective nouns 1 A of class 10 english CBSE

The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths

Write examples of herbivores carnivores and omnivo class 10 biology CBSE

10 examples of evaporation in daily life with explanations

Choose the feminine form of the given noun Fox AFoxess class 10 english CBSE
