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 sphere has a radius of 7 cm. What is its surface area?
A sphere has a radius of 7 cm. What is its surface area?
Expand All
Collapse All
Practice Questions
1 question
Q1
A sphere has a radius of 7 cm. What is its surface area?
154 cm²
196 cm²
308 cm²
616 cm²
Show Solution
Copy
Surface area of a sphere = 4πr² = 4π(7)² = 4π(49) = 196 cm².
Questions & Step-by-step Solutions
1 item
Q
Q: A sphere has a radius of 7 cm. What is its surface area?
Solution:
Surface area of a sphere = 4πr² = 4π(7)² = 4π(49) = 196 cm².
Steps: 5
Show Steps
Step 1: Identify the formula for the surface area of a sphere, which is 4πr².
Step 2: Substitute the radius (r) into the formula. Here, the radius is 7 cm.
Step 3: Calculate (7)², which is 49.
Step 4: Multiply 49 by 4, which gives you 196.
Step 5: Finally, multiply 196 by π to get the surface area in terms of π, or you can just state it as 196 cm².
Related Questions
W
Which sentence would best fit in the blank space in the following paragraph? 'Wh
Question: Which sentence would best fit in the blank space in the following paragraph? \'While socia..
W
What can be inferred about the author's attitude towards social media?
Question: What can be inferred about the author\'s attitude towards social media?Options: The author..
W
What is the author's main argument regarding the future of social media?
Question: What is the author\'s main argument regarding the future of social media?Options: It will ..
W
Which of the following words best captures the essence of the author's perspecti
Question: Which of the following words best captures the essence of the author\'s perspective on soc..
A
A cone has a radius of 4 cm and a height of 9 cm. What is its volume? (Use π = 3
Question: A cone has a radius of 4 cm and a height of 9 cm. What is its volume? (Use π = 3.14) (2023..
‹
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
✕
↑
