Stormswan
  • Stormswan
Can someone please help me? I really need help with this. Iwill give a medal. Find the area of the following shape. You must show all work to receive credit.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Hitaro9
  • Hitaro9
Think you can take a picture or draw the shape?
Stormswan
  • Stormswan
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Hitaro9
  • Hitaro9
Okay. If you're ever given something that seems unnecesary complicated, always try to take it down to something very simple. If you were given a similar problem, but it was just a rectangle or a triangle on a similar grid, could you do it?

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Stormswan
  • Stormswan
uhh maybe. would it just be multiplying the sides?
Stormswan
  • Stormswan
if that is the case then can't i just make that one shape in 2 shapes.. and find out the different areas?
Hitaro9
  • Hitaro9
Right. For a rectangle to get the area you multiple the side lengths. For a right triangle you multiple the side lengths and divide by two Does this picture help at all? http://puu.sh/idZon/229348e264.png
Hitaro9
  • Hitaro9
If you can find the area of each individual shape and add them up, you'll get the whole area
Stormswan
  • Stormswan
So for the rectangle it would be 6x6=36 right?
Hitaro9
  • Hitaro9
Yep! 36 units squared
Stormswan
  • Stormswan
and for the triangle i would do... 3x3 divided by 1/2? which would be 4.5?
Hitaro9
  • Hitaro9
Which triangle are you looking at? I think you might've miscounted the side length
Stormswan
  • Stormswan
the one you drew.... of wait. it's 4 x 6. my bad. and then the answer would be 12?
Hitaro9
  • Hitaro9
Okay hold on
Hitaro9
  • Hitaro9
http://puu.sh/idZW3/9e91af3666.png
Hitaro9
  • Hitaro9
That triangle is 3 by 4. Does that make sense?
Stormswan
  • Stormswan
ohhhhhhhh okay, nvm omg. I was doing it the wrong way, yeah. i get it. Then it's 6.
Stormswan
  • Stormswan
so then the final answer is 42. okay
Stormswan
  • Stormswan
Thank you!!!!!
Hitaro9
  • Hitaro9
Wait. There are two other triangles
Stormswan
  • Stormswan
wait wut .-.
Hitaro9
  • Hitaro9
It's easy from here, but don't forget them haha
Hitaro9
  • Hitaro9
http://puu.sh/idZon/229348e264.png
Hitaro9
  • Hitaro9
Sometime's it's important to look back at the bigger picture. There are 3 triangles and one rectangle
Stormswan
  • Stormswan
so... 3x4 div by 1/2= 6 3x6 div by 1/2= 9 6x6 div by 1/2= 18
Stormswan
  • Stormswan
and for the rectangle it would be 6x6=36
Stormswan
  • Stormswan
and the final answer is..........69 :) am I right?
Hitaro9
  • Hitaro9
Oh sorry. Umm, where are you seeinga 6x6 triangle?
Hitaro9
  • Hitaro9
Oh. Keep in mind that you only look at the bases of a right triangle for its area. So a triangle that looks like this http://puu.sh/ie16I/1549b72568.png Has bases 1x6, so it's 6x1 div by 2= 3
Hitaro9
  • Hitaro9
Other than that I think it looks good
Hitaro9
  • Hitaro9
Should be 54 rather than 69
Stormswan
  • Stormswan
i thought it was 56? not 54...
Hitaro9
  • Hitaro9
Oh maybe I added wrong 1 sec
Hitaro9
  • Hitaro9
36+6+9+3 36+6 = 42 42+9 = 51 51+3=54
Hitaro9
  • Hitaro9
If I'm making some dumb arithmetic mistake feel free to point it out
Stormswan
  • Stormswan
ohhh okay, sorry nvm
Stormswan
  • Stormswan
Thank you for your help!!
Hitaro9
  • Hitaro9
Okay. Any questions about what we did? Does each step make sense?
anonymous
  • anonymous
Sum the area of triangle ABF and trapezoid EBCD. Refer to the attachment.
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