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1. anonymous

2. anonymous

well its eay can u show me the attempt or do u know basic trigno

3. rishavraj

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4. anonymous

5. rishavraj

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6. anonymous

Wouldn't it be "C" because it's confirmed to be along with sides CA.

7. rishavraj

wht u saying???? see its mentioned tht the length of ladder is 12 feets....and makes a 45 degree angle with the building...

8. anonymous

I had no idea that was a 12. Are you saying the possible answer can be 6/2 since it's the length of the other side... i'm sorry, this is confusing to me.

9. rishavraj

u need to find the length of AB..... so $AC \cos 45 = AB$

10. anonymous

I think I understand it. I am still not so sure of my final answer, I think it's B since 24/2 would get me 12, the same as 12. I really don't understand what you by cos45.

11. rishavraj

$\cos 45 = \frac{ 1 }{ \sqrt{2} }$ $AB = 12 \times \frac{ 1 }{ \sqrt{2} }$

12. rishavraj

$12 \times \frac{ 1 }{ \sqrt{2} } = 6\sqrt{2}$