anonymous
  • anonymous
help~
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
Question number 11 and 12, I just need to know the main point of it because I completely blind with this 2 figure
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danica518
  • danica518
the proportion of the sides are kept like
danica518
  • danica518
9,15,18 and the other is 6,10,12 but 3/2*6,3/2*10,3/2*12 = 9,15,18 if u multiply all the sides by 3/2

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danica518
  • danica518
the angles within the triangle are dependant on the ratio of the sides to one another, not the actual side length
danica518
  • danica518
so these 2 triangles will be similar
ali2x2
  • ali2x2
HEY HIGH FIVE IM ON KEYSTONE TOO :D
ali2x2
  • ali2x2
did you happen to take english 7th grade?
danica518
  • danica518
if you know the sin law or the cos law for example, u can show that the same 3 angles in the left triangle will exist in the right triangle
danica518
  • danica518
another way to show similiaright is to label the triangle and show same propotions exist
danica518
  • danica518
|dw:1439960406604:dw|
danica518
  • danica518
you have to show 3 sides are proportional thats about it u can go about it other ways
danica518
  • danica518
i personally thing stating that all the sides of the bigger triangle are 3/2 factor bigger than the sides of the smaller triangle is good enough
danica518
  • danica518
think*
anonymous
  • anonymous
okay :) wow, that;s really helpful, but what about number 12? I just can't say that it have 4 right angles ( square have it to).
danica518
  • danica518
same idea again
danica518
  • danica518
are the sides proportional
danica518
  • danica518
is 8/20 = 12/25?
danica518
  • danica518
or 8/12 = 20/25?
anonymous
  • anonymous
oh okay :3
danica518
  • danica518
these sides are not propotional
anonymous
  • anonymous
the first one I think? let me check 8/12 = 12/ 25 2/3 =12/ 25 ( false) 8/20 = 20/25 2/5 =4/5 ( false )
anonymous
  • anonymous
the it not similar at all! walaaaaaaaaa
UnkleRhaukus
  • UnkleRhaukus
*voilĂ 
anonymous
  • anonymous
@UnkleRhaukus okay, wrong spelling :) sr :(

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