anonymous
  • anonymous
Find the perimeter and area of each parallelogram. Round to the nearest tenth. Help
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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jim_thompson5910
  • jim_thompson5910
Where is the parallelogram?
anonymous
  • anonymous
|dw:1327364287076:dw|
jim_thompson5910
  • jim_thompson5910
does it say anything about it being a rhombus?

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More answers

anonymous
  • anonymous
No
jim_thompson5910
  • jim_thompson5910
you made a mark in the lower right hand corner to denote a right angle, but you clearly have a 45 degree angle to the left of that, so which one is it?
anonymous
  • anonymous
That's what the book picture is
anonymous
  • anonymous
|dw:1327364747193:dw|
anonymous
  • anonymous
i cant draw stright
jim_thompson5910
  • jim_thompson5910
oh ok, one sec
anonymous
  • anonymous
k
jim_thompson5910
  • jim_thompson5910
the problem here is that this has to be a rhombus because if it wasn't then we'd be missing information (namely the base side that runs parallel to the ground), so double check to make sure that nothing is missing
anonymous
  • anonymous
Number 10 hold on
jim_thompson5910
  • jim_thompson5910
alright
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
there
jim_thompson5910
  • jim_thompson5910
oh i see now
anonymous
  • anonymous
if u can do it Show Work plz
jim_thompson5910
  • jim_thompson5910
are you familiar with trigonometry?
anonymous
  • anonymous
Nope Only Alg and Geo
jim_thompson5910
  • jim_thompson5910
We can cut that parallelogram in half along that dashed line to get those two triangles We can then find the base b through the formula b = x/sqrt(2) where x is the hypotenuse In this case, x = 4, so the base is b = 4/sqrt(2) = 2.828 So the perimeter is P = 2*4 + 2*2.828 P = 13.656 So the perimeter is roughly 13.656 meters And the area of one triangle is A = (bh)/2 A = (2.828*2.828)/2 A = 8/2 A = 4 which means that the area of the parallelogram is 2*4 = 8 square meters
anonymous
  • anonymous
tanx a lot
jim_thompson5910
  • jim_thompson5910
yw
anonymous
  • anonymous
Damn homework
jim_thompson5910
  • jim_thompson5910
lol
jim_thompson5910
  • jim_thompson5910
hw will get annoying definitely
anonymous
  • anonymous
Willing to help wit all? 9-19 20-28even
jim_thompson5910
  • jim_thompson5910
i'm afraid i don't have enough time, which one is really bugging you
anonymous
  • anonymous
idk lol how long do u have
jim_thompson5910
  • jim_thompson5910
about 10 min or so
anonymous
  • anonymous
ok can u do some if u can
jim_thompson5910
  • jim_thompson5910
alright, which one do you want me to do?
anonymous
  • anonymous
11
anonymous
  • anonymous
srry if i seem a pain in the A$$
jim_thompson5910
  • jim_thompson5910
No you're not a pain at all. # 11 This is a square. And the formula for the perimeter is P = 4s P = 4*5.4 P = 21.6 So the perimeter is 21.6 cm and the formula for the area is A = s^2 A = (5.4)^2 A= 5.4*5.4 A= 29.16 So the area of the square is 29.16 square cm
anonymous
  • anonymous
12? if u have time
jim_thompson5910
  • jim_thompson5910
Last one and then I have to go # 12 Perimeter: P = 2*15+2*10 P = 30+20 P = 50 So the perimeter is 50 inches Area: A = bc*sin(theta) A = 10*15*sin(45) A = 150*0.70710678 A = 106.066017 So the area is roughly 106.066017 square inches

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