Question

What is √180 rounded to the nearest hundredth?Select one of the options below as your answer: A. 13.41 B. 13.42 C. 13.43 D. 13.44

Answer 1

put it into your calculator

Answer 2

or do you not know how?

Answer 3

if your calculator is like the one below, press 2nd and x^2

Answer 4

and if you cannot use your calculator:
√180
Simplify the radical
√180 = √(36 x 5)
Since 36 is a perfect square
6√5
The square root of five is 2.236... plus a ton of other numbers
So 6 x 2.23 = 13.416...
And rounded to the nearest tenth
13.42

Answer 5

Hope that helped!

Answer 6

another method is to make a guess
\[\frac{180+g^2}{2g}\]
let g=13
\[\frac{180+13^2}{2*13}=new~guess\]
run the new guess thru .. after 2 times you should be able to see it limiting to the correct answer