Answer: The length of the square is 
Step-by-step explanation:
By definition, the area of a Regular polygon can be calculated with the following formula:

Where "s" the length of any side of the polygon and "n" is the number of sides .
According to the information given in the exercise, you know that:

Since an hexagon has six sides, you know that:

Therefore, its area is:

The formula to find the area of a square is:

Where "s" is the length of any side of the square.
Since that regular hexagon has the same area as this square, you can substituting the area calculated above into the formula for calculate the area of a square, and then solve for "s".
Then you get:

-7 is the slope.
the slope formula is x2,y2-x1,y1
0-1=-1
11-4=7
the y goes on top of the x in the notation, so 7/-1 can be simplified to -7.
Hope this helps:)
Answer:
That is;
{25,45,65}
Step-by-step explanation:
Here, we want to find the set of A n B
That is the set that contains values that are present in both sets A and B
Mathematically, that will be;
{25,45,65}
I think the first one is 65
Your answer would be A b=a+5