The diameter of a circle is 4 cm. Find its area to the nearest tenth.

12.56.

Step-by-step explanation:

Formula: (pi)*r^2

(pi)*2^2.

-->2^2 = 4.

3.14 x 4 = 12.56.

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

where is the picture

step-by-step explanation: