Answer:
Triangular prism 1: 132
Triangular prism 2: 828
Step-by-step explanation:
1) triangle+triangle+rectangle+rectangle+rectangle
A of triangle=3*4 divided by 2
12/2= 6
since there are 2 triangles we do 6*2= 12
A of rectangle 1= 10*5= 50
A of rectangle 2= 10*4= 40
A of rectangle 3= 10*3= 30
so SA of whole figure is 12+50+40+30= 132
2) triangle+triangle+rectangle+rectangle+rectangle
A of triangle=9*12 divided by 2
108/2=54
since there are 2 triangles we do 54*2=108
A of rectangle 1= 9*20=180
A of rectangle 2= 15*20=300
A of rectangle 3= 12*20= 240
so SA of whole figure is 108+180+300+240=828
Please mark brainliest :)
Thank you
