We can always split a regular polygon with
sides into
triangles, whose base is the side of the polygon and whose height is the apothem of the polygon. So, the sum of the areas of all these triangles is

where
is the number of sides,
is the side length, and
is the apothem length.
So, you just need to plug you values in: in your case, you have 
So, the formula becomes

502 and 63 have no common factors:
Factors of 63: 1, 3, 7, 9, 21, 63
Factors of 502: 1, 2, 251, 502
Therefore the simplest form of 502/63 is 502/63
Answer:
17.1 in
Step-by-step explanation:
Answer:
Step-by-step explanation:
5 miles + 16 miles = 21 miles
each mile is 2.50
21 x 2.50 = 52.50
trip is 4.50
52.50 + 4.50 = 57