Answer:
58.3°
Step-by-step explanation:
Missing Information:
In this question the diagram is missing Following are the attachment of diagram of the given question.
As we seen that the vertex c is making the right angle i,e 90° also there is an acute angle the Hypotenuse: 20 cm and the perpendicular is 10.5 cm
Now we have find the best approximation of the angle ABC used the cosx trigonometric function.
[tex]cos\ x\ =\ \frac{perpendicular}{Hypotenuse} \\[/tex]
Putting the value of perpendicular and hypotenuse in the previous formula we get
[tex]cos\ x\ =\ \frac{10.5\ cm}{20\ cm} \\[/tex]
[tex]x\ =cos^{-1}\ 0.525\\x \ = \ 58.33[/tex]
