Find service area of a cylinder
Formula = 2(pi x r^2) + 2(pi)(r)(H)
Diameter = 1ft.
Height = 4ft.
2(3.14 x 6^2) + 2(3.14)(6)(4)
2(113.04) + 6.28 x 24
226.08 + 150.72
SA = 376.8 ft.
You have to use all feet or all inches
r = 0.5 feet NOT 6 inches
2(3.14 x 0.25) + 2(3.14)(.5)(4)
answer in feet^2
Phil had a pizza that was divided into 8 equal parts she ate 3 of them Dan has a pizza that is the same size but his is divided into 4 equal parts who ate more pizza
3/4 = .75
3/8 = .375
which is bigger?
To find the surface area of a cylinder, you need to use the formula: SA = 2(pi x r^2) + 2(pi)(r)(H)
First, you need to determine the values of the radius (r) and the height (H) of the cylinder.
Given:
Diameter = 1ft.
To find the radius, divide the diameter by 2: 1ft / 2 = 0.5ft
So the radius (r) is 0.5ft.
Height = 4ft.
Now, substitute these values into the formula:
SA = 2(pi x r^2) + 2(pi)(r)(H)
SA = 2(3.14 x 0.5^2) + 2(3.14)(0.5)(4)
SA = 2(3.14 x 0.25) + 2(3.14)(0.5)(4)
SA = 2(0.785) + 2(3.14)(0.5)(4)
SA = 1.57 + 2(3.14)(0.5)(4)
SA = 1.57 + 2(6.28)(4)
SA = 1.57 + 50.24
SA = 51.81
Therefore, the surface area of the given cylinder is 51.81 square feet.