a=35 b=55
this is because sohcahtoa and calculators says so, and the calculator is always right. Also, my calculator is broken :(
C. (2/5)^2 * n^9*2
4/25n^18
Answer: 80 miles
Work: I just did 40 times 2 because they completed half their trip, and they need to complete 40 more miles.
<em>Happy Holidays! :)</em>
For this case, we must find the lateral area of the pentagonal prism shown in the figure.
By definition:

Where:
: Is the lateral area
: It is the perimeter of the base
h: It's the height
Substituting the values we have:

Answer:
