Answer:
980 feet
Step-by-step explanation:
Because the length is 5 times the width, you can write it as 5x with x as the width. Then you can set it up as 5x + x = 84 for l + w = p, and solve for x. You'll find that x is 14, and 14 times 5 is 70, so you would multiply 70 by 14 to get 980.
7 foot
5 cent
line1：
line2:
3
S = R θ where θ is in radians
If θ = 2 pi then S = 2 pi R the circumference of the circle
θ = S / R = 9.7 / 9 = 1.08 rad
Since 1 rad = 360 / (2 pi) = 57.3 deg
the angle included = 1.08 rad * 57.3 deg/rad = 61.9 deg
