Who needs to buy a countertop for a kitchen he calculated the area to be 16 ft.² the actual area is 15.4 ft.². What is the percentage error?
To calculate the percentage error, we need to find the difference between the calculated area and the actual area, and then divide it by the actual area, and multiply the answer by 100 to get the percentage.
The difference between the calculated area and the actual area is 16 ft² - 15.4 ft² = 0.6 ft².
So, the percentage error is (0.6 ft² / 15.4 ft²) * 100% = 3.9%.
Therefore, the percentage error is 3.9%.