Math Destroyer Problem: Confusion Part 2

[wired202808]

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The answer processed to do a bunch of formulas and derives the answer as 8, my question is this if the endpoints of the diagonal are given, why cant the answer simply be x2- x1 = 5. Im confused how you can have the measurements of a diagonal and yet have a length that is longer than the diagonal. Can anyone please elaborate?

 

[KyoPhan]

I believe it's because the rectangle is rotated on the graph.

What # is this and what test?

 

[wired202808]

I believe it's because the rectangle is rotated on the graph.

What # is this and what test?

Test 9 question 18. thanks for the help kyo! you've been my math tutor for 2 days now lol

 

[KyoPhan]

Test 9 question 18. thanks for the help kyo! you've been my math tutor for 2 days now lol

No problem, everyone has been really helpful to me on this forum as well. So this is me giving back.

You would be correct in doing x2 - x1 = length if the triangle wasn't rotated though.

Edit: I just noticed. Don't confuse the red arrow for it pointing to the dashed line! The red arrow should be pointing to the red line.

 

[wired202808]

No problem, everyone has been really helpful to me on this forum as well. So this is me giving back.

You would be correct in doing x2 - x1 = length if the triangle wasn't rotated though.

Edit: I just noticed. Don't confuse the red arrow for it pointing to the dashed line! The red arrow should be pointing to the red line.

hmm ok but wasnt the problem askin for a rectangle? are you just using the assumption that a rectangle are two opposite triangles. I guess even if you have the coordinates you cannot assume that that is exactly the length? for all triangles. I just came upon a similar problem (test 10 quest 20) i made the same mistake here.

 

[KyoPhan]

hmm ok but wasnt the problem askin for a rectangle? are you just using the assumption that a rectangle are two opposite triangles. I guess even if you have the coordinates you cannot assume that that is exactly the length? for all triangles. I just came upon a similar problem (test 10 quest 20) i made the same mistake here.

Correct, it is asking for the length of the rectangle. Take a close look at the graph. I drew the rectangle in dashed lines. I had to use the triangle to calculate the length of the triangle, which is the the same as the length of the square.

 

[wired202808]

Correct, it is asking for the length of the rectangle. Take a close look at the graph. I drew the rectangle in dashed lines. I had to use the triangle to calculate the length of the triangle, which is the the same as the length of the square.

ok thanks a lot man i will review and try to internalize this problem and hope i get easier stuff on the real dat lol (at least in terms of geo; which is my weakest area by far)