Answer:
B) x=80°
Step-by-step explanation:
This is a hexagon, so it has interior angles equaling 720°. (N-2)*180
So the equation would be
78+134+136+132+2x+x=720
480+3x=720
3x=720-480
3x=240
x=80°
C.45 its rightttttttttttttttttttttttttttttttttttttttttttttttttttttt
974.5 is the answer to what you are trying to solve
The relationship between the rates of change can be found by taking the derivative of area with respect to time.
... a(t) = π·r(t)²
... a'(t) = 2π·r(t)·r'(t)
At the time of interest, we have
... a'(t) = 2π·(6 ft)·(5 ft/min) = 60π ft²/min
The rate of change of area at that time is 60π ≈ 188.5 ft²/min.
