Tell me the answer and explain your work

Basically what you do is make both of the equations equal to each other since it is parallel meaning they both are equal to each other since it’s both equal to 180.

Your answer would be ahere is how: perimeter is how long all the sides are. in a rectangle, there are two sets of parallel sides. so, to find this, we would to the following.(15x2)+(4x2)30+838if you have questions ask! and mark me brainliest! i really wanna level up : 3