Gabylovesyou Group Title Triangle congruence and similarity 5 months ago 5 months ago

1. Gabylovesyou Group Title

What is the flaw in the student's proof? Justification 4 should be "AB ÷ AD = AB ÷ AC because triangle ABC is similar to triangle ABD." Justification 1 should be "Angle ABC = Angle BCD and Angle BCA = Angle DBC." Justification 2 should be "BC ÷ DC = AC ÷ BC because triangle ABC is similar to triangle BDC." Justification 3 should be "Angle ABC = Angle ADB and Angle BAC = Angle BAD."

2. Gabylovesyou Group Title

@ganeshie8 I don't get this one ;/

3. ganeshie8 Group Title

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4. ganeshie8 Group Title

first two statements are about using : $$\triangle ABC \sim \triangle BDC$$

5. ganeshie8 Group Title

there is no flaw in those statemetns

6. ganeshie8 Group Title

lets look a bit closely at statement 3

7. ganeshie8 Group Title

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8. ganeshie8 Group Title

say, that angle = $$\alpha$$

9. ganeshie8 Group Title

you wid me ? :)

10. ganeshie8 Group Title

if u set up the angles correctly u will get : Justification 3 should be "Angle ABC = Angle ADB and Angle BAC = Angle BAD."

11. Gabylovesyou Group Title

oh ok thank you so much and sorry... openstudy is kinda acting crazy for me

12. ganeshie8 Group Title

same here... it is acting up from last couple of hours lol

13. ganeshie8 Group Title

i see all oranges.. and lag..

14. Gabylovesyou Group Title

yessss !! me too haha