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Mathematics 18 Online
OpenStudy (anonymous):

The vertices of ΔABC are A(1,–2), B(1,1), and C(5,–2). Which could be the side lengths of a triangle that is similar but not congruent to ΔABC? 3, 4, and 5 units 9, 12, and 15 units 6, 4, and 5 units 9, 12, and 5 units

OpenStudy (anonymous):

@radar

OpenStudy (anonymous):

@magepker728

OpenStudy (anonymous):

@satellite73

OpenStudy (anonymous):

@Loser66

OpenStudy (anonymous):

@toottwin

OpenStudy (anonymous):

either 9 12 and 15 or 9 12 and 5

OpenStudy (anonymous):

how do you even figure it out?

OpenStudy (anonymous):

i don't know i asked my mom ;)

OpenStudy (anonymous):

I'm sorta busy right now with my homework

OpenStudy (loser66):

hahaha... 9, 12, 15 only

OpenStudy (anonymous):

how?

OpenStudy (anonymous):

yes ask him

OpenStudy (loser66):

(3,4,5) is a right triangle, right?

OpenStudy (loser66):

and it is exactly your ABC

OpenStudy (loser66):

Hence it cannot be the answer.

OpenStudy (anonymous):

alright got that part

OpenStudy (loser66):

|dw:1457577013340:dw|

OpenStudy (loser66):

|dw:1457577099514:dw|

OpenStudy (loser66):

|dw:1457577119758:dw|

OpenStudy (loser66):

Hence, your ABC is a right triangle with the sides (3,4,5) Therefore, the first option is NOT correct since it is congruent to ABC

OpenStudy (loser66):

Now, 3*(3,4,5) = (9,12,15) is only solution

OpenStudy (loser66):

It makes your triangle 3 times larger than it is and similar to the original one.

OpenStudy (loser66):

Make sense?

OpenStudy (anonymous):

yes ! thank you, so much

OpenStudy (loser66):

ok

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