A circle for a game spinner is divided into 3 regions as shown. AB is a diameter. What is the area of the shaded sector if AB = 20 С
A
55
B (these are the points of the circle. Center is 55 degrees)

OA
125
——-pi
36

OB
275
——-pi
18

OC
625
——-pi
18

OD
1250
——— pi
9

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

h= 12 inches

step-by-step explanation:

t hope this

: