Total Surface Area of Hemisphere
Total Surface Area of Hemisphere
Total Surface Area of Hemisphere: The total surface area of Hemisphere of radius r is given by
Illustration: Find the surface area and total surface area of a hemisphere each of radius 10cm. .
Solution: We have, r = 10cm
Surface Area
Total Surface Area =
Illustration: The radius of a hemispherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the ratios of the surface areas of the balloon in the two cases.
Solution: Let and
be the surface areas of the hemispherical balloon when its radii are 7 cm and 14 cm respectively. Then,
The total surface area of a hemisphere of radius r is given by | |||
| Right Option : C | |||
| View Explanation | |||
A cone hemisphere and a cylinder stands on equal bases and have the same height, the height being equal to the radius of the circular base, then their whole surface areas in the ratio. | |||
| Right Option : A | |||
| View Explanation | |||
The total surface area of a hemispherical solid having radius 14 cm is ______________________ | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
