the angles on the opposite sides of a quadrilateral touching the circumference adds up to 180 degrees
so,
(21x-2) + (38x +5) = 180
21x+38x −2+5=180
59x+3=180
59x=177
x=3
24
Perimeter is amount out all sides added together.
16 students turned in their homework early i think. I hope this helps
Akim ran 69.75 miles in the course of 18 days.