Approximating Square Roots (Example)

The video tutorial explains how to estimate the square root of 79 by identifying it between two integers, 8 and 9, using a chart. It further refines the estimate to 8.9, as 79 is closer to 81. The estimation is verified using a calculator, confirming its accuracy.

Between which two integers does the square root of 79 lie?

• 9 and 10

• 8 and 9

• 10 and 11

• 7 and 8

Why is the square root of 79 closer to 9 than 8?

• Because 79 is a prime number

• Because 79 is an even number

• Because 79 is closer to 81

• Because 79 is closer to 64

What is the estimated value of the square root of 79?

• 8.9

• 8.7

• 8.5

• 9.1

How can we verify the accuracy of our estimate for the square root of 79?

• By using a compass

• By using a calculator

• By using a protractor

• By using a ruler

Is the estimated value of 8.9 for the square root of 79 accurate?

• No, it should be 9

• Yes, it is fairly accurate

• No, it is closer to 8

• Yes, but it should be 8.5