Yahoo Answers: Answers and Comments for Question on Triangles? [Mathematics]
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From Anonymous
enUS
Thu, 13 May 2010 21:22:22 +0000
3
Yahoo Answers: Answers and Comments for Question on Triangles? [Mathematics]
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From kitty: 12 + 18 + 21
= 51
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Fri, 14 May 2010 05:53:02 +0000
12 + 18 + 21
= 51

From Bieber: This just means that this triangle is 3 times ...
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Fri, 14 May 2010 04:42:53 +0000
This just means that this triangle is 3 times bigger, so:
(4 * 3) + (6*3) + (7*3) =
12 + 18 + 21 =
51
Have a great day! :)

From Dr Pi: Answer : Perimeter = 51
Solution:
Let p = pe...
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Fri, 14 May 2010 04:33:28 +0000
Answer : Perimeter = 51
Solution:
Let p = perimeter of the smalller tiangle
Let P = perimeter of the larger triangle
They gve you all of the sides of the smaller triangle which you can add them all up to find p which is 17. They give you th longest side of the larger triangle which is 21 while the larger side of the smaller triangle is 1/3 of 21 (7) so you can assume they multiplied 7 by 3 to get 21. So now you can just multiply p by 3 to find P.
(P/p) = (21/7)
p = 4+6+7 = 17
P = (17)x(3)
P = 51

From ZleD: Answer : P = 51
Solution:
Let p = perimeter...
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Fri, 14 May 2010 04:32:42 +0000
Answer : P = 51
Solution:
Let p = perimeter of the smalller tiangle
Let P = perimeter of the larger triangle
Now, since it is given that 21 is the longest side of the larger side. we can use the principle of similar triangles, since 7 is the longest side of the smaller triangle, we can use this relationship:
(P/p) = (21/7)
since all sides of the smaller triangle is given, we can get p
p = 4+6+7 = 17
substituting into the equation
(P/17) = (3)
P = (17)x(3)
P = 51

From Anonymous: since 7 is the longest on the smaller it corre...
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Fri, 14 May 2010 04:29:46 +0000
since 7 is the longest on the smaller it corresponds to the 21 on the larger, and you figure out that u multiply 7 by 3 to get 21 so you multiply 4 and 6 by 3 to get 12 and 18 so u add 12, 18, and 21 which equals 51

From Barry: 51
If the triangles are similar, all the si...
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Fri, 14 May 2010 04:29:12 +0000
51
If the triangles are similar, all the sides of the larger one will be 3 times the smaller. 12, 18, and 21.

From Eric: When two triangles are similar, it means their...
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Fri, 14 May 2010 04:27:04 +0000
When two triangles are similar, it means their dimensions are proportionate. If the longest side of the larger triangle is 21, it means that the smaller triangle's dimensions were multiplied by 3. (7 * 3 = 21).
Therefore the dimensions of the larger triangle will be 12, 18, 21
The perimeter would be 12 + 18 + 21 = 51.