Answer:
Step-by-step explanation:
Assume a pentagon has equal length where a be the side of the pentagon and r be the apothem of the pentagon.
Given:
Sides of pentagon
apothem of pentagon
The area of the pentagon formula is given below.
Where b = length of the base or side
And h = height of apothem
Now, we substitute side and apothem length in above formula.
Therefore, the area of the pentagon is
Answer:
D. 720
Step-by-step explanation:
For this case we have 6 different cities that needs to be ordered in different ways. And the best way to solve this problem is using permutations since we can't repeat the route.
We need to remember the concept of permutation.
A permutation, known as "arrangement number" "is a rearrangement of the elements of an ordered list S into a one-to-one correspondence with S itself". Where S correspond to the sample space. And the formula is given by:
And for this case we have a total of 6 cities and we want to know how many routes with these 6 cities we can create, so then n=6 and k=6 and if we replace we got:
And then we have 720 ways to visit six different cities. So the best option is:
D. 720