alan needs posts to fence his 12 m by 10-m lot. IF he allows a distance of 1 m between the posts, how many posts will he have.
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jigglypuff314 (jigglypuff314):
so find the perimeter.
perimeter = all the sides added up
|dw:1389495870379:dw|so what is 12+12+10+10?
OpenStudy (anonymous):
so there are 44 posts
jigglypuff314 (jigglypuff314):
yep :)
OpenStudy (anonymous):
Which has the largest area.
jigglypuff314 (jigglypuff314):
are there options? :)
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OpenStudy (anonymous):
what is the ormula to find the circumference o a circle
jigglypuff314 (jigglypuff314):
the formula for the circumference of a circle is 2 pi r
where "r" = radius
OpenStudy (anonymous):
answer on the 2 one
jigglypuff314 (jigglypuff314):
huh?
OpenStudy (anonymous):
please emonstrate
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jigglypuff314 (jigglypuff314):
if a circle has a radius of 5
|dw:1389496779042:dw|then the circumference would be 2 times pi times (5)
which would be simplified to 10pi
OpenStudy (anonymous):
what is the are o
circle its diameter is 8m
jigglypuff314 (jigglypuff314):
area of a circle is radius times radius times pi
diameter is 2 times radius
so since radius is half of the diameter
when the diameter is 8
then radius is 4
then area = 4 times 4 times pi
simplified would be = 16pi
OpenStudy (anonymous):
the radius o the circular pool is 3.5.what is its circumference
jigglypuff314 (jigglypuff314):
circumference = 2 times pi times r
when r represents radius
so when radius = 3.5
circumference = 2 times (3.5) times pi
= 7pi
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