Alerts Wishlist Cart

In a circle, if the radius is 7 cm, what is the area of the circle?

Practice Questions

Q1
In a circle, if the radius is 7 cm, what is the area of the circle?
  1. 154 cm²
  2. 49 cm²
  3. 28 cm²
  4. 100 cm²

Questions & Step-by-Step Solutions

In a circle, if the radius is 7 cm, what is the area of the circle?
  • Step 1: Identify the radius of the circle. In this case, the radius (r) is 7 cm.
  • Step 2: Recall the formula for the area of a circle, which is A = πr².
  • Step 3: Substitute the radius into the formula. So, A = π(7)².
  • Step 4: Calculate (7)², which is 49.
  • Step 5: Now, substitute back into the formula: A = 49π cm².
  • Step 6: If you want a numerical approximation, use π ≈ 3.14. So, A ≈ 49 × 3.14.
  • Step 7: Calculate 49 × 3.14, which is approximately 154 cm².
No concepts available.
Biology (School & UG)
Biology (School & UG)
Chemistry (School & UG)
Chemistry (School & UG)
Civil Engineering
Civil Engineering
Commerce & Accountancy
Commerce & Accountancy
Computer Science & IT
Computer Science & IT
Current Affairs & GK
Current Affairs & GK
Data Structures & Algorithms
Data Structures & Algorithms
eBooks
eBooks
Electrical & Electronics Engineering
Electrical & Electronics Engineering
English (School)
English (School)
General Aptitude
General Aptitude
General Knowledge
General Knowledge
General Knowledge & Current Affairs
General Knowledge & Current Affairs
Languages & Literature
Languages & Literature
Law & Legal Studies
Law & Legal Studies
Major Competitive Exams
Major Competitive Exams
Mathematics (School)
Mathematics (School)
Mechanical Engineering
Mechanical Engineering
Medical Science
Medical Science
Physics (School & Undergraduate)
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Quantitative Aptitude & Reasoning
Social Science (School)
Social Science (School)
Technical
Technical
Verbal and Reasoning
Verbal and Reasoning
Vocational & Skill Development
Vocational & Skill Development
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely