To find the length you must first find the length of the line between the 2 triangles. Call it and solve for it.
Here's a kick start
After you have y use it here
I don't know how to even start.
Please help, w/ steps!
An irregular building lot in a subdivison has the shape shown:
( in attachment )
a) Determine an exact expression for the length side of X
b) Determine an approximation for X, to the nearest tenth of a metre.