jika besar sudut BED=150° dan sudut BAD=80° maka besar sudut ADE?
Matematika
vina651
Pertanyaan
jika besar sudut BED=150° dan sudut BAD=80° maka besar sudut ADE?
2 Jawaban
-
1. Jawaban ayekfita
BAD = CDE = 80
DEC = 150 + x = 180
x = 180 -150
x = 30
ABE = DEC = 30
ABD = 80 + x = 180
x = 180 - 80
x = 100 -
2. Jawaban JafarShidqul
BAD = CDE = 80
DEC = 150 + x = 180
x = 180 -150
x = 30
ABE = DEC = 30
ABD = 80 + x = 180
x = 180 - 80
x = 100