Geometry question (1 Viewer)

[nazfiz]

I cant seem to find anything to show that their similar.
Any help would be appreciated
Thanks in Advance

 

[nazfiz]

Bump

 

[bleakarcher]

When proving that triangles ABC are ADB are similar it is clear since both contain a right angle and share the angle BAD. We have known shown that these are similar since they are equiangular and it follows of course that the final angle is also equal due to the interior angle sum of a triangle.

When proving that triangles ABC and BDC are similar it is again very clear since we they both contain a right angle and share the angle BCD implying once again that they are equiangular.

It follows from this that triangles ADB and BDC are also similar since they both share similarity with triangle ABC

 

[Carrotsticks]

Nazfiz, from what file are you getting your questions?

 

[SpiralFlex]

Nazfiz, from what file are you getting your questions?

SBHS. You can recognise the default title.

 

[Carrotsticks]

Could somebody please upload a copy of it? I'm interested in seeing the questions they have.

 

[SpiralFlex]

Could somebody please upload a copy of it? I'm interested in seeing the questions they have.

That's my cue.

SBHS Year 11 2008 HY 2U paper: http://www.mediafire.com/?1ng5vbfr8sueb6v

SBHS Year 11 2008 HY 2U Solutions: http://www.mediafire.com/?eiwypv9n1895zcf

 

[Carrotsticks]

That's my queue.

SBHS Year 11 2008 HY 2U paper: http://www.mediafire.com/?1ng5vbfr8sueb6v

SBHS Year 11 2008 HY 2U Solutions: http://www.mediafire.com/?eiwypv9n1895zcf

*cue

Thank you for the papers.

I thought it was a homework .pdf file because it went up to Question 30 something.

Very strange to see a half yearly go from Question 1 --> 30+ instead of having Question 1 (a) etc.

 

[SpiralFlex]

*cue

Thank you for the papers.

I thought it was a homework .pdf file because it went up to Question 30 something.

Very strange to see a half yearly go from Question 1 --> 30+ instead of having Question 1 (a) etc.

My English is not good. This is Preliminary. Everything is strange in the land of Year 11.

 

[Nooblet94]

http://latex.codecogs.com/gif.latex?~\\\angle&space;BDA=\angle&space;ABC=90^o&space;~\textrm{%28given%29}\\&space;\angle&space;BAD&space;=&space;\angle&space;BAC~\textrm{%28common%29}\\&space;\therefore&space;\triangle&space;ABC~|||~\triangle&space;ADB~\textrm{%28equiangular%29}\\&space;~\\&space;\angle&space;BDC=\angle&space;ABC=90^o~\textrm{%28given%29}\\&space;\angle&space;BCD=\angle&space;BCA~\textrm{%28common%29}\\&space;\therefore&space;\triangle&space;ABC~|||~\triangle&space;BDC~\textrm{%28equiangular%29}\\&space;~\\&space;\therefore&space;\triangle&space;BDC~|||~\triangle&space;ABC~|||~\triangle&space;ADB