Answer:
The awnser is Incorrect
Step-by-step explanation:
So do the Parentheses first (4x2)=8
12-4=8
12-2=10
Now do your multiplcation 8x10=80
Subtract 12-8=4
So the awnser is incorrect
It is because both the dividend and the divisor are multiplied by 10, 100, 1000, or some other power of ten.
This is a problem using the Pythagorean theorem.
The square of the length required is 122 + 122 + 302 = 1188
The length is the square root of this number; I will leave it to you to extract the square root.
20.16 hopefully it’s right