Answer:
36mm2
Step-by-step explanation:
The ratio between sides is:
[tex]\frac{12}{8}[/tex]
Since this is the proportional area, we square this ratio
[tex](\frac{12}{8} )^{2}=\frac{12^{2} }{8^{2} }= \frac{144}{64} =2.25[/tex]
If the minor triangle has an area of 16 mm2, then the greater triangle will have an area of:
[tex]16(2.25)=36mm^{2}[/tex]
Hope this helps