The radius of a hemisphere is r. What is its volume?

Asked by Last Modified  

5 Answers

Learn Mathematics +1

Follow 4
Answer

Please enter your answer

Mathematician

2pie r^2
Comments

Tutor

2/3×π×r×r×r
Comments

Maths Tutor

151
Comments

See the world in different perspective

Just to make it easy for you, I am making this statements. Simply remember the area of the circle = pi*r^2. Multiply this by another radius quantity so it becomes = pi*r^3. Now just multiply with 4/3 to get the volume of the sphere= 4/2*pi*r^3. To get hemisphere volume just divide by two (Hemisphere...
read more
Just to make it easy for you, I am making this statements. Simply remember the area of the circle = pi*r^2. Multiply this by another radius quantity so it becomes = pi*r^3. Now just multiply with 4/3 to get the volume of the sphere= 4/2*pi*r^3. To get hemisphere volume just divide by two (Hemisphere = half the sphere) so Hemisphere volume=2/3*pi*r^3 ( if you like to know the exact derivation of this quantity you can go through integral calculus). read less
Comments

Tutor

2×π×r×r×r
Comments

View 3 more Answers

Related Questions

Find the area of a right-angled triangle whose base is 12 cm and height is 5 cm.
Area of a triangle is 1/2 * base * altitude = 1/2 * 12 * 5 = 30 cm^2
Raje
Factorise: 14x6 – 45x3y3 – 14y6
(2X^3 - 7Y^3) (7X^3+2Y^3)
Narmatha

The radius of a hemisphere is r. What is its volume?

 

Volume of hemisphere of radius r=(2πr³)/3 =Half of the volume of full sphere ((4πr³)/3) = 2π/3 times of volume of cube of side r.
Shradha
Given that HCF (161,345) = 23, find their LCM.
N¹ *N² = LCM * HCF 161 *345 =23 * N² N² =2415
A

How to learn math online?

Via skype you can teach everything online
Robin

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons





many of you have a problem a to square, cube a no..
There is a trick to do it Just remember (a+b)² = a² + 2ab + b² Now remove + sign (a/b)² = a²/2ab/b² You can find square easily Ex will be in a next post Bye
S

Shivam Tiwari

0 0
0

Recommended Articles

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

While schools provide formal education to the children, the home is where they start learning about things informally. Parents think that schools will take the initiative to educate their children. Well, this is partially true, as parents also play an essential role in bringing up their child. For the development of particular...

Read full article >

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

Looking for Class 9 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you