Answer:
128°
Step-by-step explanation:
that is an opposite angle
So we know that the width is 12 because 4 x 3 = 12. The formula to find the perimeter is Length + length + width + width. So you would do 3 + 3 + 12 + 12 = 30. Therefore the perimeter is 30 inches
For slope mx+b=y
4x-13=-8y
y=(4x-13)/8
y= 4x/8 -13/8
you pick the coefficient of x
which is 4/8 or 1/2