Given data:
The length of branch is BC=10 m.
The given angle is β=23.58 degrees.
1)
The expression for the height of the branch above the ground is,
[tex]h=BC(\sin \beta)[/tex]Substitute the given values in the above expression.
[tex]\begin{gathered} h=(10m)(sin(23.58^{\circ})) \\ =4m\text{ } \end{gathered}[/tex]Thus, the height of the branch above the ground is 4 m.