-4 isn't a real number because there is no square root of -4. However, there is a cube root of -8, because -2 * -2 * -2 = -8.
Answer:
69 yards
Step-by-step explanation:
Perimeter = 2(length + width)
300 = 2(81 + width)
150 = 81 + width
width = 69
Answer: 230.4 feet
Step-by-step explanation:
arc length = circumfrance x fraction of a circle
=
x 
= 
= 230.4 feet to nearest tenth