Answer: 2√14
Step-by-step explanation:
The area of a circle is A = πr², where r is radius. Since the area is 56π, we can divide π from both sides to find r² = 56. The square root of 56 is √56, which can be rewritten to √8×√7. The square root of 8 is equal to 2√2, so the simplified value for radius is 2√2×√7, or 2√14.