Answer: the last one
Step-by-step explanation:
Wouldn’t the answer be 19.
Find the surface area of one side and multiply it by 6
Multiple 2x * 5x =10x^2
Multiple 2x * -1 = -2x
Multiple 6 * 5x = 30x
Multiple 6 * -1 = -6
Add 30x + (-2x) = -28x
10x^2 + 28x -6 is the final answer
Answer:
I think it is triangle, pentagon, heptagon, decagon