The side length of a square can be determined by taking the square root of its area. If the measurements mentioned (30 units, 35 units, 42 units, and 49 units) represent the lengths of the sides of squares, we can calculate the approximate side lengths as follows:
- For 30 units: The side length is already 30 units.
- For 35 units: The side length is already 35 units.
- For 42 units: The side length is already 42 units.
- For 49 units: The side length is already 49 units.
If these measurements refer to the areas of squares instead, we can find the side lengths by calculating the square root of each:
- For an area of 30 units: The side length is approximately 5.48 units.
- For an area of 35 units: The side length is approximately 5.92 units.
- For an area of 42 units: The side length is approximately 6.48 units.
- For an area of 49 units: The side length is 7 units.
In summary, if the values provided represent the side lengths of squares, they correspond directly to the given numbers. If they represent areas, the approximate side lengths would be as calculated above. For our understanding, it’s crucial to clarify the context of the measurements: side lengths versus areas.