Find angle 'A' if :
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sin A=PerpendicularHypotenuse⇒sin A=10210⇒sin A=12⇒sin A=sin 45°\text{sin A} = \dfrac{Perpendicular}{Hypotenuse}\\[1em] ⇒ \text{sin A} = \dfrac{\dfrac{10}{\sqrt2}}{10}\\[1em] ⇒ \text{sin A} = \dfrac{1}{\sqrt2}\\[1em] ⇒ \text{sin A} = \text{sin 45°}sin A=HypotenusePerpendicular⇒sin A=10210⇒sin A=21⇒sin A=sin 45°
Hence, A = 45°.
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Find 'x', if :
Find angle 'x' if :
