Final answer:
The length of each side of a square frame with an area of 196m² is 14 meters.
Step-by-step explanation:
To calculate the length of each side of a square frame with an area of 196m², we utilize the formula for the area of a square, which is side length squared. Thus, to find the side length, we take the square root of the area. The square root of 196m² is 14m, so the length of each side of the frame is 14 meters.