tolong bantu aku secepatnya :)
Jawaban:
a. Nilai X = 40,5⁰
b. besar <ABC = 180⁰
Penjelasan dengan langkah-langkah:
a. Nilai X = X + 28⁰ + 3X - 10⁰ = 180
= 4X + 18⁰ = 180⁰
= 4X = 180⁰ - 18⁰
= 4X = 162⁰
= X = 162⁰/ 4
= X = 40,5⁰
b. besar <ABC = X + 28⁰ + 3X - 10⁰
= 40,5⁰ + 28⁰ + 3.40,5 - 10⁰
= 68,5 + 111,5
= 180⁰
SEMOGA MEMBANTU YAA
[answer.2.content]
