Question
Evaluate the following formula for the values given. \( A=\pi r^{2} \), when \( r=3 \) (a formula for finding the area of a circle) The area of the circle is \( \square \). (Type an integer or decimal rounded to the nearest hundredth as needed.
Ask by Gordon Burns. in the United States
Feb 04,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
The area of the circle is approximately 28.27.
Solution
Sign in to Unlock Answers for Free!
A Learning Platform Trusted by Millions of Real Students and Teachers.
Unlock
Reviewed and approved by the UpStudy tutoring team
Like
Bonus Knowledge
To evaluate the formula \( A = \pi r^{2} \) with \( r = 3 \), we first substitute 3 for \( r \): \( A = \pi (3)^{2} = \pi \times 9 = 9\pi \). Now, using the approximate value of \( \pi \) (3.14), we multiply: \( A \approx 9 \times 3.14 = 28.26 \). So, the area of the circle is \( 28.26 \) (rounded to the nearest hundredth).