(a) the missing side is
x2 = 42 + 52
x =
so,
sin = 4
/ 41
(B) is correct option
-----------------------------------------------------------------------------------------------------------
(b) the angle will be
=
sin-1 (0.18293545)
= 10.54
(c) =
tan-1 (0.91203476)
= 42.36
----------------------------------------------------------------------------------------
130.6 degree
multiply by pi / 180
we get 2.279 radians
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