The polygon is a perfect square. I graphed those points on a graph. I hope this helped if not let me know so I can try and write the correct answer.
Step-by-step explanation:

Answer:
i got 33.33 but um i think it is 30%
Step-by-step explanation:
Answer:
11) 49 in.²
13) 4.515 m²
Step-by-step explanation:
11) area of square = (side)²
area = (7 in.)² = 7 in. × 7 in. = 49 in.²
13) area of triangle = base × height/2
area = 4.3 m × 2.1 m / 2 = 4.515 m²
I would assume b ^5 .. add 3 plus 2 and put it as the power or exponent whatever it’s called