Solving Inverse Trigonometric Equations to One Decimal Place
Solving Inverse Trigonometric Equations to One Decimal Place
TGM Original
The following diagram shows triangle \(ABC\) in which the length of \(AB\) is \(7.5\) cm and the length of \(AC\) is \(5\) cm.
It is given that triangle \(ABC\) has an area of \(18\) cm\(^{2}\), find the obtuse angle \(BAC\).
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Answer:\(106.3^\circ\)
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