Step-by-step explanation:
please the information needed is up the paper. you took a picture of no. 2 instead of no. 1
Answer:
688 cm²
Explanation:
Area of triangular prism = Base × Height + Length × (perimeter of base)
Here given:
- Perimeter of Base: (6 + 12.4 + 12.4) = 30.8 cm
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Surface Area = 6 × 12 + 20 × (30.8) = 688 cm²
Answer:
j
Step-by-step explanation:
The answer is B
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