Answer:
168 cm²
Explanation:
Lateral surface area of triangular prism: (perimeter of base) × height
Here given:
So, lateral surface area:
= (4 + 6 + 4) × 12
= 168 cm²
Answer: 1,360
Step-by-step explanation:
20 * 20 = 400
20 * 12 = 240
240 * 4 = 960
960 + 400 = 1,360
Correct me if I'm wrong, but I think it's 4x3=12, so divide 12 by 6 to get 2 pages.