Answer:
See Below.
Step-by-step explanation:
We are given that:

By vertical angles:

Hence, by substitution:

Then by Angle-Angle Similarity:

Area of polygon = (number of sides × length of one side × apothem)/2
Answer:
is the answer.
Step-by-step explanation:
Change the denominators to 15.

12 - 11 = 1.
= 