A rectangular bulletin board measures 45 cm x 30 cm. If you are provided stickies that have dimensions of 1.5 cm x 1 cm, how many stickies would it take to cover the board?

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi

answer: b

step-by-step explanation:

i'm guessing it might be 40.

4: 9 is the basic ratio for 36: 81