the diagram shows a right angled triangle 15cm 37 degrees

Answer:
h = 11.3 cm
use tane rule:
[tex]\sf tan(x)= \dfrac{opposite}{adjacent}[/tex]
Here:
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[tex]\hookrightarrow \sf tan(37)= \dfrac{h}{15}[/tex]
[tex]\hookrightarrow \sf h = tan(37) * 15[/tex]
[tex]\hookrightarrow \sf h = 11.3 \ cm[/tex]