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Mathematics 21 Online
lolokrat:

check #3-5, help with #6?

lolokrat:

lolokrat:

if they are similar, id say itd be PQT=RQS but im unsure of the similarity theorem

Vocaloid:

3. check the proportions again 20/18 =/= 36/24 the sides are not proportional so the triangles are not similar

Vocaloid:

4 is good

Vocaloid:

for 5 you have to be careful about the order on the left triangle, you listed the points in the order IGH (bottom point, right point, then left point) gotta follow this same pattern on the right triangle S, then R then Q

lolokrat:

wouldnt it be SQR?

lolokrat:

oh oops was thinking it was IGH

Vocaloid:

|dw:1553640048711:dw|

Vocaloid:

anyway for the last one they don't tell you that the sides are proportional but they give you two equal angles (the 90 degree angles) and <PQT and <RQS are equal because they're vertical angles two angles ---> AA similarity theorem

Vocaloid:

|dw:1553640166163:dw|

lolokrat:

so if its vertical angle is AA theorem?

Vocaloid:

nah, it's AA because we have two triangles with two equal angles

lolokrat:

oh so if theres no side numbers and theres 2 angles its AA

Vocaloid:

I used the vertical angle theorem to prove that the two triangles share that angle in the middle

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