Answer:
3/2=1.5
Step-by-step explanation:
Based on the attached image
[tex]AREA_{ABC}=AREA_{AEC}-AREA_{ABF}-AREA_{CDE}_F-AREA_{BCD}\\AREA_{ABC}=BASE_{AEC}*HEIGHT/2_{AEC}-BASE_{ABF}*HEIGHT_{ABF}/2-BASE_{CDE}_F*BASE_{CDE}_F-BASE_{BCD}*HEIGHT_{BCD}/2\\AREA_{ABC}=3*3/2-1*2/2-1*1-2*1/2=9/2-1-1-1=3/2[/tex]
