Answer:

Step-by-step explanation:
Perimeter of the rectangle= 1144 feet
Length=3*Width
L=3*W
Perimeter of rectangle:

The Dimension of the rectangle is :

3x-3 and 4x-6 are complementary angles meaning together they add up to 180°. Set them equal to each other. So you get 3x-3=4x-6 now simplify this. Now you have x=3 and there you have it! If you plug 3 into x in both equations it works! Hope this helps!
2.20 rounded to the nearest tenth is 2.2 it is already rounded if it was 2.29 it would be 2.3