Answer:
The side lengths are 32 units each
Step-by-step explanation:
Given


Required
The side lengths and missing angles
Since JKMN is as square, then:
-- all sides are equal

Collect like terms


Divide by -2

Substitute
in 


The missing angles can't be solved without an attachment.
<em>However, if the missing angles are the angles at the edges of the square, then they measure 90 degrees each (i.e. angles at right angle)</em>
Produce 4, and show they go in a circular motion that there are no gaps or overlaps
x is the angle
4x = 360. True or not true...
Or simply measure with a protracter
The formula we need is this one:

. Filling in accordingly, we have x+4(x+4+1)=x+1(x+1+11). Simplifying that we get (x+4)(x+5)=(x+1)(x+12). We will FOIL both sides to get

. Combining like terms gives us this simplification: 0=4x-8. If we factor out the common 4, we have 0 = 4(x-2). By the Zero Product Property, eitheer 4=0 or x-2=0. Well obviously, 4 does not equal zero, so x-2 = 0, and x = 2.
The distributive property says that a(b+c)= ab+ac
3(2y-7)= 3(2y)+ 3(-7)
Final answer: 6y-21