What is the area of a circle with radius 11? (Use π ≈ 3.14)

What is the area of a circle with radius 11? (Use π ≈ 3.14)

• A. 380.22
• B. 379.94
• C. 375.87
• D. 390.16

Answer: (B)

To find the area of a circle, you can use the formula: \[ \text{Area} = \pi r^2 \] where \( r \) is the radius of the circle. In this case, the radius is given as 11. First, calculate the square of the radius: \[ r^2 = 11^2 = 121 \] Next, multiply this by \( \pi \) (approximated here as 3.14): \[ \text{Area} = 3.14 \times 121 \] Now, perform the multiplication: \[ 3.14 \times 121 = 379.94 \] This value represents the area of the circle with a radius of 11 when using the approximation of \( \pi \). Thus, the correct answer indicates the area of the circle accurately, matching the calculation made.

To find the area of a circle, you can use the formula:

[ \text{Area} = \pi r^2 ]

where ( r ) is the radius of the circle. In this case, the radius is given as 11.

First, calculate the square of the radius:

[ r^2 = 11^2 = 121 ]

Next, multiply this by ( \pi ) (approximated here as 3.14):

[ \text{Area} = 3.14 \times 121 ]

Now, perform the multiplication:

[ 3.14 \times 121 = 379.94 ]

This value represents the area of the circle with a radius of 11 when using the approximation of ( \pi ). Thus, the correct answer indicates the area of the circle accurately, matching the calculation made.