Option C:
Laterals surface area = 144 square units
Total surface area = 186 square units
Solution:
Lateral surface area = (8 × 6) + (8 × 6) + (8 × 6)
= 48 + 48 + 48
= 144
Lateral surface area of the prism = 144 square units
Base area (B) = [tex]\frac{1}{2} bh[/tex]
[tex]$=\frac{1}{2} \times 6\times 7[/tex]
= 21 square units
Total surface area = Lateral surface area + 2 (Base area)
= 144 + 2(21)
= 144 + 42
= 186
Total surface area of the prism = 186 square units.
Hence Option C is the correct answer.
Laterals surface area = 144 square units
Total surface area = 186 square units
