the question above or below states
The triangle has an area of 90cm^2 what size can angle x be

Answer:
[tex]x=30°[/tex]
Step-by-step explanation:
[tex]Area=\frac{18*20sinx}{2} \\ \Leftrightarrow 90=\frac{18*20sinx}{2} \\ \Leftrightarrow sinx=\frac{90*2}{18*20}=\frac{1}{2}\\ \Leftrightarrow x=30°[/tex]