Alerts
Wishlist
Cart
Sign In
Categories
Current Affairs & GK
Current Affairs
Show All Current Affairs & GK
eBooks
General Aptitude
Arithmetic Aptitude
Data Interpretation
Show All General Aptitude
General Knowledge
Basic General Knowledge
General Science
Show All General Knowledge
Medical Science
Anatomy
Biochemical Engineering
Biochemistry
Biotechnology
Microbiology
Show All Medical Science
Technical
Database
Digital Electronics
Electronics
Networking
Show All Technical
Verbal and Reasoning
Logical Reasoning
Verbal Ability
Verbal Reasoning
Show All Verbal and Reasoning
A cylinder has a volume of 100π cm³ and a height of 10 cm. What is the radius of
Practice Questions
Q1
A cylinder has a volume of 100π cm³ and a height of 10 cm. What is the radius of the base?
2 cm
3 cm
4 cm
5 cm
Questions & Step-by-Step Solutions
A cylinder has a volume of 100π cm³ and a height of 10 cm. What is the radius of the base?
Steps
Concepts
Step 1: Write down the formula for the volume of a cylinder: Volume = πr²h.
Step 2: Substitute the known values into the formula. We know the volume is 100π cm³ and the height is 10 cm, so we write: 100π = πr²(10).
Step 3: Simplify the equation by dividing both sides by π. This gives us: 100 = r²(10).
Step 4: Now, divide both sides by 10 to isolate r²: 100 / 10 = r², which simplifies to 10 = r².
Step 5: To find the radius r, take the square root of both sides: r = √10.
Step 6: Calculate the approximate value of √10, which is about 3.16 cm.
Volume of a Cylinder
– Understanding the formula for the volume of a cylinder, which is V = πr²h, where r is the radius and h is the height.
Algebraic Manipulation
– Ability to rearrange equations to solve for a variable, in this case, the radius r.
‹
Biology (School & UG)
Chemistry (School & UG)
Civil Engineering
Commerce & Accountancy
Computer Science & IT
Current Affairs & GK
Data Structures & Algorithms
eBooks
Electrical & Electronics Engineering
English (School)
General Aptitude
General Knowledge
General Knowledge & Current Affairs
Languages & Literature
Law & Legal Studies
Major Competitive Exams
Mathematics (School)
Mechanical Engineering
Medical Science
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Social Science (School)
Technical
Verbal and Reasoning
Vocational & Skill Development
›
Soulshift Feedback
×
On a scale of 0–10, how likely are you to recommend
The Soulshift Academy
?
0
1
2
3
4
5
6
7
8
9
10
Not likely
Very likely
✕
↑