tolong bantuan nya sm caranya
Matematika
vicky234
Pertanyaan
tolong bantuan nya sm caranya
1 Jawaban
-
1. Jawaban xkorosensei
BCD + ABC = 180
2x-2+5x+21 = 180
2x+5x = 180+2-21
7x = 161
x = 161 รท 7
x = 23
BCD = 2x (23) - 2
= 46 - 2 = 44 (b)