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Blades of grass in a football field

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by

Sophie Stein

on 22 May 2013

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Transcript of Blades of grass in a football field

Final Steps Square feet
in a football field Square inches
in a football field 0 + - = 9 8 7 1 2 3 4 5 6 c How many blades of grass in a Square inch? How many blades of grass in a square foot? To find how many blades of grass in a square foot I multiplied 47 and 144. I multiplied these two numbers because there are 144 square inches in a square foot and there are 47 blades of grass in a square inch so you multiply 47 an 144.
47 x 144 = 6768 How many square feet and square inches are in a square yard? Showing Image results for
square yard... Area of a football field How Many Blades of Grass in a Football Field? Our class found the average of blades of grass in a square inch:
47 blades of grass. To find out how many square inches are in a square yard I multiplied 144 and 9. I multiplied these numbers because there are 9 square feet in a square yard so you multiply 144 and 9.
144 x 9 = 1296
So to find out how many blades of grass are in a square yard you multiply 6,768 how many blades of grass in a square foot by 9 the number of square feet in a square yard. 6768 x 9= 60,912 Square Yard To find the area of a football field
you need to know the dimensions.
Dimensions of a football field:
L=120 yards W=53 and 1/3 of a yard
So we found the area which is 6,400 square yards. 6,400 6,400 x 9= 57,600 57600 x 144=
8,294,400 Blades of grass
in a football field 60,912 x 6,400= 389,836,800 Football Field You multiply 60,912 and 6,400 because there are 6,400 square yards in a football field and there are 60,912 blades of grass in a square yard so you multiply.
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