Answer:
Area of a regular pentagon = pa/2, where p = the perimeter and a = the apothem. If you don't know the perimeter, calculate it from the side length: p = 5s, where s is the side length.
Step-by-step explanation:
Answer:
I dont know if I can answer if I don't have more information then the question
-1 - (-7) = 6
5 - (-1) = 6
11 - 5 = 6
The common difference is 6.
If you add 6 to a term, you get the next term.

Answer:
2cnd one 3rd one 4th one last one
Step-by-step explanation:
Answer:
The answer is D.
Step-by-step explanation:
All the numbers starting from 1 to infinity are known as natural numbers. Answer D is not a number but all the other answers are.