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Mathematics 81 Online
bill533:

Which statements must be true? https://static.k12.com/nextgen_media/assets/8110399-NG_GMT_DP100_678_002.jpg Select each correct answer. ON = 1/2 SU ST = 2ON MN¯¯¯¯¯¯¯ ∥ SU¯¯¯¯¯ OM¯¯¯¯¯¯ ∥ TU¯¯¯¯¯ NO = NM

bill533:

@SmokeyBrown

SmokeyBrown:

I think the third and fourth options are true, but not the others

bill533:

https://static.k12.com/nextgen_media/assets/8110391-NG_GMT_NP100_679.jpg What is DE ? Enter your answer as a decimal in the box. _________ units

SmokeyBrown:

So triangle ABC is similar to triangle DBE, and DBE is half as large as ABC. So, DE would be half the length of AC

bill533:

6.3

SmokeyBrown:

Yup, that's right

bill533:

https://static.k12.com/nextgen_media/assets/8080563-NG_GMT_G_05_U05_Quiz_09.png What are the coordinates of the endpoints of the midsegment for △JKL that is parallel to KL⎯⎯⎯⎯⎯? Enter your answers in the boxes. Enter your answers in the boxes. (____, _____) and (____, _____)

SmokeyBrown:

That'd be (-1,-3) and (1,-3). It's a horizontal line, which is parallel to KL. Also, the points are exactly the midpoints of lines JL and JK

bill533:

i was thinking is it (-1,3.5) (-1,2)

bill533:

you know what you might be right

SmokeyBrown:

Yeah, since JL goes down 4 and to the right 2, the midpoint would be down 2 and to the right 1 of point J. That's (-1,-3). And JK goes down 4 and to the right 6. So, the midpoint is 2 down and 3 right of point J, which is (1,-3)

bill533:

NOTED

bill533:

https://static.k12.com/nextgen_media/assets/8080549-NG_GMT_G_05_U05_Quiz_05.png What are the coordinates of the endpoints of the midsegment for △LMN that is parallel to LN¯¯¯¯¯ ? Enter your answers, as a decimal or whole number, in the boxes. ( _____, ______) and (______, _______)

SmokeyBrown:

I'd say (3, 4.5) and (3, 3)

bill533:

well kind of switch around a bit

SmokeyBrown:

Oh, yeah I guess from low to high it would be (3,3) and (3,4.5)

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