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
What is the area of a sector of a circle with a radius of 4 cm and an angle of 9
Practice Questions
Q1
What is the area of a sector of a circle with a radius of 4 cm and an angle of 90 degrees? (2023)
4π cm²
2π cm²
8π cm²
6π cm²
Questions & Step-by-Step Solutions
What is the area of a sector of a circle with a radius of 4 cm and an angle of 90 degrees? (2023)
Steps
Concepts
Step 1: Identify the formula for the area of a sector of a circle, which is Area = (θ/360) × πr².
Step 2: Substitute the values into the formula. Here, θ (the angle) is 90 degrees and r (the radius) is 4 cm.
Step 3: Calculate the area by plugging in the values: Area = (90/360) × π(4)².
Step 4: Simplify the fraction 90/360 to get 1/4.
Step 5: Calculate (4)², which is 16.
Step 6: Now multiply: Area = (1/4) × π × 16.
Step 7: Simplify the multiplication: Area = 4π cm².
Step 8: Therefore, the area of the sector is 4π cm².
No concepts available.
‹
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
✕
↑