○=> Correct option :
[tex]\color{plum}\tt\bold{(D) \: 135}[/tex]
○=> Steps to derive correct option :
Given :
▪︎The figure is of a regular octagon
▪︎Angle z is one of the eight angles of this octagon.
We know that :
▪︎All angles of a regular octagon sums upto form 1080°.
Which means :
Measure of angle z :
[tex] =\tt \frac{1080}{8} [/tex]
[tex]\color{plum} =\tt 135°[/tex]
Thus, the measure of angle z = 135°
▪︎Therefore, the correct option is (D) 135
