Cylinder: First you need to find the radius. To do that, you need to divide the diameter by 2
Then, you multiply it by itself
After that, you multiply it by the height
And finally multiply it by pi
Cone: First, you need to find the radius dividing the diameter by 2
Then, multiply it by itself
After that, divide the height by 3
Finally, multiply the radius times the height and then multiply it by pi
The answer to the cylinder is 251.2 and the answer to the cone is 251.2
The processes are the following:
Cylinder
D:8
R:4
V:π4^2*5
V:π16*5
V:80π
V:251.2
Cone
D:8
R:4
V:π4^2 15/3
V:π16*5
V:80π
V:251.2
Perimeter=sum of side lengths...
P=2L+2W
P=2(L+W), in this case L and W are 30 and 40 so
P=2(30+40)
P=2(70)
P=140
So 140 feet of fencing is needed to replace the fence.
The amount of sod needed is equal to the area which is LW
A=30(40)=1200 ft^2
Hi , the answer is 1.08 x 10*8.
Answer:
The answer is 86 feet
Step-by-step explanation:
50+36=86
Hope this helps! （づ￣3￣）づ╭❤～
Answer:
2 m
Step-by-step explanation:
First we need to calculate the actual area of the garden:
Area = 16 * 8 = 128 m2
If the new area is 240 m2 and we call the width of the pathway 'w', we have that:
New area = (16+2w) * (8+2w) = 240
128 + 48w + 4w^2 = 240
4w^2 + 48w - 112 = 0
w^2 + 12w - 28 = 0
Delta = 12^2 + 4*28 = 256
sqrt(Delta) = 16
w1 = (-12-16)/2 = -14 m (not a valid width)
w2 = (-12+16)/2 = 2 m
