anonymous
  • anonymous
Lisa has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area of the polygon. Be sure to show all your work and explain your answer.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
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anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
please help @shinebrightlikeadimon @johnweldon1993
anonymous
  • anonymous
ok so this polygon is an irregular polygon there is no equation to find it

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anonymous
  • anonymous
so first you need to cut the polygon into pieces that can be calculated
Loser66
  • Loser66
Suggestion: find the biggest one, then subtract the irrelevant parts.
anonymous
  • anonymous
|dw:1433606810579:dw|
Loser66
  • Loser66
@MLG360GABEN What is the formula to find area of a rectangular?
anonymous
  • anonymous
and what formula to find triangles?
anonymous
  • anonymous
umm A=bh/2 ?
Loser66
  • Loser66
to find area of a square also. You need them all to solve this problem. Please, state them out
anonymous
  • anonymous
@MLG360GABEN what is the formula for a square?
anonymous
  • anonymous
A= a divided by 2 ?
anonymous
  • anonymous
no the area of a square is A=bh b=base h=height; sound familiar?
anonymous
  • anonymous
kind of
anonymous
  • anonymous
im confused
anonymous
  • anonymous
yes, now look at the pic i drawn above, there is a triangle towards the top left......right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
would that be 40?
anonymous
  • anonymous
no can you write the formula for the triangle and try again?
anonymous
  • anonymous
A= bh x 2
anonymous
  • anonymous
@MLG360GABEN you just stated the formula above...... A=(bh)/2
anonymous
  • anonymous
so 72?
anonymous
  • anonymous
what does the slash mean?
anonymous
  • anonymous
divide
anonymous
  • anonymous
ohh
anonymous
  • anonymous
18?
anonymous
  • anonymous
or 36?
anonymous
  • anonymous
here'\[A= \frac{ (20\times20) }{ 2 }\]s the formula:
anonymous
  • anonymous
give me a hint
anonymous
  • anonymous
well, 20x20 is 400
anonymous
  • anonymous
is it lower or higher than a 100
anonymous
  • anonymous
because i got 200
anonymous
  • anonymous
well you are correct
anonymous
  • anonymous
so its 200?!
anonymous
  • anonymous
YEAAAAA
anonymous
  • anonymous
thank YOU for all your time im sorry if I was frustrating
anonymous
  • anonymous
no problem
anonymous
  • anonymous
thanks bye :)
anonymous
  • anonymous
now you need to find the area of the rectangel to the right
anonymous
  • anonymous
ok
anonymous
  • anonymous
so you remember the formula?
anonymous
  • anonymous
A=bh
anonymous
  • anonymous
so its A=6x36 right?
anonymous
  • anonymous
can you find the area?
anonymous
  • anonymous
i'll try
anonymous
  • anonymous
its just multiplying :)
anonymous
  • anonymous
so its just 216
anonymous
  • anonymous
great!
anonymous
  • anonymous
is that all did i do it
anonymous
  • anonymous
now you need to subtract the smaller triangle from 216
anonymous
  • anonymous
210
anonymous
  • anonymous
you still need the formula for triangle! A=(bh)/2
anonymous
  • anonymous
A=(6x6) / 2
anonymous
  • anonymous
228?
anonymous
  • anonymous
no the area of the triangle is 18
anonymous
  • anonymous
yes i got that
anonymous
  • anonymous
now subtract 216-18
anonymous
  • anonymous
198
anonymous
  • anonymous
198
anonymous
  • anonymous
now add that to the area to the big triangle to the left
anonymous
  • anonymous
200+198=???
anonymous
  • anonymous
398
anonymous
  • anonymous
goood job!! thats your final answer
anonymous
  • anonymous
yay!!
anonymous
  • anonymous
:)
anonymous
  • anonymous
so how should I explain this in my essay?
anonymous
  • anonymous
hmmm everything we have talked about before, how you split up the polygon into pieces and found the areas. then you added them together and got the final answer. and dont forget to mention the formulas
anonymous
  • anonymous
ok thanks :)
anonymous
  • anonymous
bye
anonymous
  • anonymous
good luck :)

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