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Mathematics 6 Online
Bearclaws72:

Given: ΔABC ≅ ΔFDE What is the length of Segment line DE rounded to the nearest tenth?

Bearclaws72:

1 attachment
Bearclaws72:

@Vocaloid Helpz

Vocaloid:

BC = DE judging by our formula so you would use the distance formula to find BC

Vocaloid:

|dw:1504839436323:dw|

Bearclaws72:

So the length f Bc is the same as DE?

Vocaloid:

yes

Bearclaws72:

So I plug it into that formula?

Vocaloid:

yes

Bearclaws72:

Ok

Bearclaws72:

3.2?

Vocaloid:

good, that's your answer

Bearclaws72:

Oh okz

Bearclaws72:

I have two more left

Bearclaws72:

Which could be coordinates of D'O'G' after the reflection?

Bearclaws72:

1 attachment
Vocaloid:

does it say what the reflection is?

Bearclaws72:

Well this ones multiple choice if that helps but thats it

Bearclaws72:

D'=(0,0), O'=(−1,−2), G'=(1,4) D'=(0,0), O'=(−1,−2), G'=(1,−4) D'=(0,0), O'=(−2, 1), G'=(−1, −4) D'=(0,0), O'=(−1,2), G'=(1,4)

Vocaloid:

so I believe it would be the last one since it would be a reflection across y (the x-coordinates get multiplied by -1)

Vocaloid:

the other ones would change the shape of the triangle

Vocaloid:

if you're given a problem like this in the future, just make a quick sketch of the coordinates to see which ones are actually reflections and which ones change the shape

Bearclaws72:

Ok Ill belive you and your long explanations :p

Bearclaws72:

Ok theres one more then you are done interacting with me lmao

Bearclaws72:

What coordinate for F would make triangle ABC and triangle DEF congruent?

Bearclaws72:

1 attachment
Bearclaws72:

(−3,−3) (−3,−2) (−2,−3) (−2,−2)

Vocaloid:

BA and DE have to be equal so point F must correspond to point C since point C is 1 unit up and 3 units to the right from B, we do a similar transformation to find F

Vocaloid:

so: go from point D, go 1 unit to the left and 3 units down to get F let me know what you get

Bearclaws72:

Ok

Bearclaws72:

-3,-2?

Vocaloid:

almost

Vocaloid:

(-2,-3)

Bearclaws72:

Man I always get the x and y axis confused srry

Bearclaws72:

Oh wait I got the answer to one could you check it sorry

Bearclaws72:

What additional information would you need to prove that ΔABC ≅ ΔDEF by SSS?

Bearclaws72:

1 attachment
Bearclaws72:

segment AC ≅ segment DF segment AC ≅ segment FD segment AF ≅ segment CD segment FA ≅ segment CD

Bearclaws72:

I got A^

Vocaloid:

yep good

Bearclaws72:

Really ok

Bearclaws72:

Thanks Vocaloid Ill tell you tom if I aced it I still gotta do a writing part so thanks again gn!

Bearclaws72:

Stop looking at my stuff Ultri

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