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wolfgirl2431
14.05.2021 •
Mathematics
I summed my square-side seven times and the area eleven times so that it was 6;15. What is the length of the side of my square
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Ответ:
1 ÷ 2
Step-by-step explanation:
Given that
The square side is seven times
And, the area is eleven times
So it is 6;15
We need to find out the length of the side of the square
So,
let us assume the side of square be S
Now the area is S^2
Now
11S^2 + 7S = 6.15
11S^2 + 7S - 6.15=0
Now the quadratic equation should be followed
= (-b+- √ (b^2-4ac)) ÷ 2a
Here a = 11,b = 7,c = -6.15
so
S = 0.4944, -1.1307
As we know that the side cant be negative so
Therefore
S = 0.4944 ≈ 0.5 = 1 ÷ 2
Ответ:
Pi r^2 /2
Pi 2^2/2
4pi /2
2pi would be the answer