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CBSE Class 10 Answered

answer me
Asked by | 02 Aug, 2009, 10:03: PM
answered-by-expert Expert Answer

in a right trangle pythagoras' theorem is applicable.

 if in triangle ABC(say)

angle B  is the right angle then

AC2=AB2+BC2..(i)

For any of the acute angles A or C,

sin theta=opp side/hypo..(ii)

cos theta=adjacent side/hypo..(iii)

with these three equations the result is obtained.

Answered by | 02 Aug, 2009, 11:20: PM

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