Question 261886
You are making the same mistakes as last time plus one new one!
^ doesn't mean square
^2 is squared
^3 is cubed 
^4 is to the fourth power
3.14 *7.5*7.5
This time you forgot to square the 7.5
which you should have written 3.14*7.5^2
and once again it is pi not pie!

so no it is not right!
3.14 *7.5*7.5
 not 3.14 *7.5
You did learn to square the meters this time.