Question

I would like help for these 3 questions

Answer 1

1. 340

2. 358

3. 384

Explanation:

for each question you need to sum the six faces .

for example, in question 1 you have

2 faces with a surface area of

s = b × h = 5 × 8 = 40

2 faces with a surface area of

s = b × h = 10 × 8 = 80

2 faces with a surface area of

s = b × h = 10 × 5 = 50

total surface:

(2×40)+(2×80)+(2×50)