Answer:
Square Root of 20 is 4.47
Step-by-step explanation:
The square root of 20 is 4.47213595. The hundredths place is the second place value on the right side of the decimal point. The number 4 is called the tenths, 7 is the hundredths, 2 is the thousandths etc.
If the number on the thousandths place is 5 or above, you will add 1 on the number in the hundredths place. In 4.47213595, the number in the thousandths place is 2, which is not 5 or above. So, we will eliminate all other numbers after the hundredths place, thus ending with the estimated number of 4.47
The square root of 23 is 4.79583152, and since the number in the thousandths place is 5, the estimated number will be changed to 4.80 or just 4.8
