Answer:
A) 78.5 cm^2
Explanation:
1. To find the shaded part of the circle (1/4), we can use a formula similar to the one we use to find the area of a whole circle, but in this case, for the 1/4 part that's shaded:
. Keep in mind that pi is approximated to 3.14.
2. (Solving)
Step 1: Plug in the values.
Step 2: Simplify.
Therefore, the answer is A) 78.5 cm^2.