The approximate value angle is Ф=38.94.
The angle is defined as the span between two intersecting lines or surfaces at or close to the point where they meet.
The value of the angle is calculated as:-
CosФ=[tex]\dfrac{7}{9}[/tex]
Take the inverse of the angle.
Ф=cos⁻¹[tex]\dfrac{7}{9}[/tex]
Ф=38.94
Therefore, the approximate value angle is Ф=38.94.
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