Angle COD is 60 degrees
angle BOC is 80 degrees
Because angle DOE is vertically opposite to angle boa, it is also 40 degrees. we know that angle DOF is 120, so angle FOE is 120-40 = 80 degree, and angle BOC is vertically opposite do <em>it </em>is 80 degrees.
since angle COD lies on a straight line it adds up to 180 degrees, so 180- 120 = 60 degrees
So if you're looking for the rate, then maybe you're looking for how many days one full moon will appear. You would have to divide 252 by 9, and that would make 28.
1 FULL MOON in 28 DAYS.
15.
I had x before the movie.
x - 13.50 = 26.50
Add 13.50 to both sides of the equation:
x = 40
I had $40 before the movie.
16.
The original balance was x.
x - 161.15 = 423.28
Add 161.15 to both sides:
x = 584.43
The previous balance was $584.43
Since the answer after dividing 9 to the 7th power and 9 to the 5th power, 81 would be 9 to the 2nd power
so,
9^2
Area of a circle : π * r²
4+1 = 5
π * 5² = 78.53
π * 4² = 50.27
78.53 - 50.27 = 28.26
The area of the border is 28.26 ft²