Answer:
4W+8+4W+4=180
8W+12. =180
. 8W=180-12
8W=168
W=21
BPC =4W+4
DE=360-(4W+4+4W+8+4W+4+2W+11)
=360-(14W+27)
=360-(14×21)-27
=360-321
= 39
