The surface area is 72 ft.^2.
The answer is 13. The work is below
The answer to your question is 22.
<h3>
Answer: Choice D</h3>
=============================
Explanation:
The first figure has 4 sides (quadrilateral)
The second figure has 5 sides (pentagon)
The third figure has 6 sides (hexagon)
Each time we increase the number of sides by 1.
The fourth figure must have 7 sides (heptagon). The only thing that has 7 sides is the figure listed in choice D.
Answer:
(3.10 x 10^10)
Step-by-step explanation: