To get perimeter you add all the sides together. You have 2 sides of 10ft, one side of 8ft and then the half circle. To find the arc length of the half circle you would do 1/2(2πr) which would give you πr. R=4ft since the diameter is 8ft. So you would add 8,10,10 and 4pi. If it wants an exact answer it would be 28+4pi. If it wants an approximate answer it would be 40.6ft
<span>28/61</span>+<span><span><span>−3/</span>61i
lowest I could get it
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1.
2x=6
- -
2 2
6/2=3
x=3
2.
6x=1
- -
6 6
1/6=1/6
x=1/6
Well, 20 over 40 is half, so we already know that it must be more than 50% because it is 22 over 40, so 55% of the lawn is planted with Kentucky blue grass. I hope that helps! :D