Describe how you would estimate the square root of a number that is not a perfect square without using a calculator.

Question

could you please explain this to me?

Answer 1

Say you had to estimate √87. I would find the closest perfect square below it, 81, and the closest perfect square above it, 100. So now I can set up a problem.

81 < 87 < 100
√81 < √87 < √100
9 < √87 < 10

Since 87 is closer to 81 than 100, it would make sense for √87 to be closer to 9 than 10. I would guess √87 is about 9.4.

For comparison's sake, √87 = 9.32737905

Answer 2

Wolfie, good explanation.

Answer 3

Wolfie Ur a grade saver!!

Answer 4

wolfie dude, you're a lifesaver

Answer 5

Thanks Wolfie, ur a lifesaver! <3

Answer 6

I still don't get it but thank u

Answer 7

I'm glad u all get it

Answer 8

I don’t get it

Answer 9

Answers for Lesson 7 The Pythagorean Theoroem Part 2
1:C
2:B
3:B
4:D
5:A
6:D
7:A

Answer 10

Thanks Wolfie