Find these shapes that contain triangles:
7).

 
 
AREA=______________ __________ 
                       units  
8).

 
 
AREA=______________ __________ 
                       units  
9).

 
 
AREA=______________ __________ 
                       units  
10).

 
 
AREA=______________ __________ 
                       units  
11). Find the area of the shaded part:

 
AREA=______________ __________ 
                       units