Answer:
a) Circumference of Ferris wheel.
b) 
c) 628 feet
Step-by-step explanation:
We are given the following in question:
Diameter of Ferris Wheel = 200 feet
a) Distance around Ferris wheel
The distance around Ferris wheel is given by the circumference of Ferris wheel.
b) Formula to calculate circumference

where d is the diameter of he wheel.
c) Distance traveled in one rotation
This will be given by the circumference of the Ferris wheel.

Thus, the distance traveled in one rotation is 628 feet.
I believe it would be d. equilateral. becuz a equilateral triangle is a triangle with 3 equal sides, and 3 equal angles.
Create circle B with radius AB
The perimeter is just the sum of all of the side lengths.
p=3x+4+x-10+5x-2
p=9x-8