Have u tryed 1 insted of -1 or it might be o solution
To find the perimeter you just add up all the numbers on the sides
Area for a square is base times height
Area for a triangle is 1/2 base times height
Supplementary angles add up to 180 degrees
ratio of 1:4.....added = 5
1/5(180) = 180/5 = 36 <=== smaller angle
4/5(180) = 720/5 = 144 .... larger angle
50=10+.2x so if you solve for x you get x=200. Hope this helps:)
<span>34.6410161514 is the answer
Hope this helped :)</span>