The perimeter of a sector includes two segments that are each equal to the radius, and the arc length. For your sector, the arc length is found as
perimeter = 4r = r + r + arc-length
2r = arc-length
Now we also know that arc-length is related to the central angle (in radians) by
arc-length = r*central-angle
2r = r*central-angle
2 = central-angle
The measure of the central angle of the sector is 2 radians.
Answer:
the moon is 15,840,000,000 inches away
Step-by-step explanation:
Answer:
it should be 42 hope it helps
Step-by-step explanation:
Answer:
The equation is
..
The length of the towel bar is
..
Step-by-step explanation:
Given,
Length of the door = 
we can rewrite
as
.
We have to find out the length of the towel bar.
Let the length of towel bar be 'x'
`Since Vita wants that the distance from each end of the towel bar to the end of the door to be 9 inches.
So we can say that the length of the towel bar plus from each end of the towel bar to the end of the door plus from each end of the towel bar to the end of the door is equal to length of door.
framing in equation form, we get;

Hence The equation is
.
Now we solve the equation we get;
Subtracting both side by 18 we get;

Now we will make the denominator common we get;

Hence The length of the towel bar is
.
The answer is;
x(x+4)(x-4)=500
I don't know how it is, I just guess and it works