Mathematics
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OpenStudy (anonymous):
The area of the parallelogram shown is 4 mm^2. What is the perimeter? Show your work.
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OpenStudy (anonymous):
OpenStudy (anonymous):
help me please
jimthompson5910 (jim_thompson5910):
Are you familiar with the area of a parallelogram formula?
OpenStudy (anonymous):
yes can you please give me the answer i need to get this done in 20 min and i have 15 more question
jimthompson5910 (jim_thompson5910):
I'll help get there, but I can't just give you the answer.
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OpenStudy (anonymous):
ok then help me
jimthompson5910 (jim_thompson5910):
help get you there*
jimthompson5910 (jim_thompson5910):
What is the area of a parallelogram?
jimthompson5910 (jim_thompson5910):
Any ideas?
OpenStudy (anonymous):
no
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jimthompson5910 (jim_thompson5910):
It's basically the same as a rectangle
Area = base * height
jimthompson5910 (jim_thompson5910):
What's the height in this case?
OpenStudy (anonymous):
dude please help me my moms friend is going to be here in like 3 min and we both dont know what to do and we need to get it done please!!!!!!!!!!!!!
jimthompson5910 (jim_thompson5910):
I'm trying to help you through it so you can answer these on your own.
jimthompson5910 (jim_thompson5910):
So looking at the figure, the height is what?
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OpenStudy (anonymous):
7mm
jimthompson5910 (jim_thompson5910):
good, so h = 7
jimthompson5910 (jim_thompson5910):
The base is what?
OpenStudy (anonymous):
idk it doesnt say
jimthompson5910 (jim_thompson5910):
so we let that be unknown for now
So b = x
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jimthompson5910 (jim_thompson5910):
Therefore,
A = b*h
A = x*7
A = 7x
jimthompson5910 (jim_thompson5910):
What's the given area?
OpenStudy (anonymous):
14mm
jimthompson5910 (jim_thompson5910):
That's the length of one side, not the area
jimthompson5910 (jim_thompson5910):
actually, nvm 10 is that length
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OpenStudy (anonymous):
read it again its 14mm^2
jimthompson5910 (jim_thompson5910):
hmm it says 4 mm^2 at the top
OpenStudy (anonymous):
opps that is wrong its 14mm i forgot to put a 1
jimthompson5910 (jim_thompson5910):
So A = 14
jimthompson5910 (jim_thompson5910):
and
A = 7x
becomes
14 = 7x
solve this for x
What do you get?
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OpenStudy (anonymous):
what do you mean
jimthompson5910 (jim_thompson5910):
What do you get when you solve 14 = 7x for x?
OpenStudy (anonymous):
idk
jimthompson5910 (jim_thompson5910):
7 times what number = 14 ?
OpenStudy (anonymous):
2
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jimthompson5910 (jim_thompson5910):
good, so the base is 2
jimthompson5910 (jim_thompson5910):
Since we have a parallelogram, we know that the opposite sides are equal, so we know that
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