13. Anton plans to create a community circular library
with a triangular cafe shop serving as the entrance.
Given the rough outline of the blueprint of the
library-cafe below, and given its dimensions, find the
value of a and m GN. (3 pts.)
Given: m arc GN=2a+15
m arc OV = a + 1
m angle T = 47°


Equation to solve for a:


a=

arc GN=