To find the length of a Two-Dimensional Line, let’s take the following line, AB.
We can use the equation for the length of a Two-Dimensional Line, to find the length of AB.
In this case, x1 is 9, x2 is -1, y1 is 2, and y2 is 6. Plugging those values into the equation gives us:
Subtracting the-9 from the -1 gives us 10, and subtracting 2 from 6 gives us -4.
Squaring the 10 gives us 100, and squaring the 4 gives us 16.
Adding the 16 and 100 together gives us 116, so the length of the line is the square root of 116.
While 116 is not a perfect square, it is a multiple of 4, which is a perfect square so we can factor out a 4 to simplify the radical. So, the square root of 116 can simplify down to 2 times the square root of 29.