Answer:
128mm^2
Step-by-step explanation:
Surface area of a triangular prism formula: bh+(S1+S2+S3)h
base= 8
height= 5
side 1 =5.8
side 2= 5.8
side 3= 6
8*5+(5.8+5.8+6)5
40+(17.6)5
40+88=128
128 mm
hope this helps!
