Math, asked by rambabumalothu118, 5 months ago

then fend sinA.
I COSA-4/5

Answers

Answered by SkeirGaming

2

Step-by-step explanation:

cos A =. B/H = AB/AC

by phythagores

AC²= BC²+AB²

BC²= AC²- AB²

BC²= 5²-4²

BC²=25-16

BC = 3

SinA = p/h

BC/ AC

= 3/5

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