The ladder is the hypotenuse of a 45 45 90 triangle.
The legs of a 45 45 90 triangle = hypotenuse / sqroot (2)
15 / 1.414 = 10.608
(Incidentally it is the "bottom" of the ladder that is 10.608 feet from the wall. The "top" of the ladder is touching the wall. LOL)
Just plug in 4 for the x
2*4 +4y =36
8+4y =36
4y =36-8
4y=28
y= 28/4
y=7
We can't say. You never told us how side-b is related to side-a.
Are they in the same square ? Are they in the same triangle ?
Are they sides of the same box ? Are they on the same planet ?
Prime factors of 4,725 are 3, 5 and 7
