Question 8
The figure illustrates a regular 9-sided polygon. The measure of the side of the polygon is $a$, the measurement of the smallest diagonal is $b$ and the measurement of the largest diagonal is $d$. 
Figure 58.1
a) Determine the measure of angle $B\hat{A}E$.
b) Show that $d = a + b$. Figure 58.2
Figure 58.1 a) Determine the measure of angle $B\hat{A}E$.
b) Show that $d = a + b$. Figure 58.2