Problem
Knowledge Check Find the area of a circle with radius 4 in. Use the value 3.14 for \( \pi \), and do not round your ansu Be sure to include the correct unit in your answer.
Solution
Step 1 ：\( A = \pi r^2 \)
Step 2 ：\( A = 3.14 imes 4^2 \)
Step 3 ：\( A = 50.24 \) \text{in}^2
