Answer:
A cofunction is whenever A and B are completmentary angles.
Step-by-step explanation:
You'll want to get y alone
y = -2/7x - 2
For perimeter you will add each side together so
8ft+22ft+12ft+16ft=58
So your perimeter is 58ft.
For area your going to divide the shape into 2 to get the area as this is an irregular shape, so
Base 1+base2x height / by 2
22+8 x4/2
30x4/2
120/2
60
If you’re wondering how I got 4 I subtracted 16 with 12 to know what the height was. Good luck!!
Its law of cosines just trust me.