Question

can anyone tell me the answer of the pink box TRY THESE.

Answer 1

since it is a regular hexagon
interior angle =120
angle p + angle a=180(since they form a straight line)
p=60
similarly,
p=q=r=x=y=z=60 
the reason is given above
exterior angle =60
interior angle=120
exterior angle of regular octagon=360/8
                                                    =45
therefore interior angle =180-45
=135
for a 20-gon
exterior angle =360/20
=18
interior angle =180-18=162