Upon the request of @cuty_shai2000 , I've found 2 questions. Though, I don't know if they are difficult or not. Enjoy :)

Question

anonymous · Answer

lol

callisto · Answer

attachment

callisto · Answer

If they are easy, don't blame me! Thanks :)

anonymous · Answer

i think i need a calculator here :)

callisto · Answer

I don't know why the first question looks familiar to me :(

lgbasallote · Answer

of all the verbs...enjoy???? -____- lol jkjk

callisto · Answer

@lgbasallote Enjoy...is suitable... Or what verb should I choose then?

experimentx · Answer

a) shouldn't be that difficult.

experimentx · Answer

should be 2/tan30 and 0.6/tan30

experimentx · Answer

b) BAC can be calculates using cosines law.

callisto · Answer

I know A'B' =0.6/tan30, but how can you get it immediately? I used the tan ratio to find OB' then -OA' ...

experimentx · Answer

that all right. .. since every thing is elongated by /tan30 ... we can do it immediately.

experimentx · Answer

Ah .. i forgot to add, on vertical direction.

callisto · Answer

on vertical direction?

callisto · Answer

Hmm.. even though I'm not sure what you want to express, but I think I got it.

experimentx · Answer

and what is the angle between ray and AC ??

experimentx · Answer

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