Answer:
Base=36
Height=18
Step-by-step explanation:
To work this out you would first multiply 12 by 3, which gives you 36. Then you would multiply 6 by 3, which gives you 18.
1) Multiply 12 by 3.
[tex]12*3=36[/tex]
2) Multiply 6 by 3.
[tex]6*3=18[/tex]
3) Base=36
Height=18