Matematika Tolong bantu kak besok di kumpulin ​

heathboehmulv – March 08, 2023

Tolong bantu kak besok di kumpulin ​

Jawaban:

y+2y+3y+4y = 180° (berpelurus)

9y = 180°

y = (180÷9)°

y = 20°

Sudut DBF :

2y+3y = 2(20)°+3(20)°

= 40°+60°

= 100°

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