What is the surface area? how did you find it(filled-in formula)?

1719.22 mi squared

Step-by-step explanation:

you have to find the height first.

you only have r and hypotenuse

so

a^2 + b^2 = c^2

13^2 + b^2 = 29.1^2

169 + b^2 = 846.81

b^2 = 846.81 - 169

b^2 = 677.81

b = 26.03

height = 26.03

surface area formula :

πr(r+_/h^2+r^2)

π(13) [13 + _/26.03^2 + 13^2]

= 1719.22

answer: c is correct, a regular pentagon