The surface area of a sphere is found using the formula = 4² where r is the radius. A playground ball has a surface area of 452.16 square inches. What is the radius of the ball? Use 3.14 for pi

Find the surface area of a sphere whose radius is 6cm?

Solution:

SA = 4 × π × r2

SA = 4 × π × 62

SA = 4 × π × 36

SA = 452cm2

Step-by-step explanation:

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