Find Number Close to 12: First, we need to find a number that, when squared, is close to 12. We know that 32 is 9 and 42 is 16, so the square root of 12 is between 3 and 4.
Calculate Square Root of 12: Using a calculator, we can find the square root of 12 more precisely. The calculator shows that the square root of 12 is approximately 3.464.
Round to Nearest Tenth: Now, we round this number to the nearest tenth. The digit in the hundredths place is 6, so we round up. This gives us 3.5 as the estimate to the nearest tenth.