Penjelasan dengan langkah-langkah:
hitung dl nilai x
sudut saling berpelurus
membentuk sudut 180⁰
2x⁰ + 3x⁰ + 30⁰ = 180⁰
5x⁰ = 180⁰ - 30⁰
5x⁰ = 150⁰
x = 150⁰ : 5⁰
x = 30
a) <ACD = 2x⁰ = 2•30 = 60⁰
b) <DCB = 3x⁰ + 30 = 3•30 + 30 = 90⁰ + 30⁰ = 120⁰
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Penjelasan dengan langkah-langkah:
hitung dl nilai x
sudut saling berpelurus
membentuk sudut 180⁰
2x⁰ + 3x⁰ + 30⁰ = 180⁰
5x⁰ = 180⁰ - 30⁰
5x⁰ = 150⁰
x = 150⁰ : 5⁰
x = 30
a) <ACD = 2x⁰ = 2•30 = 60⁰
b) <DCB = 3x⁰ + 30 = 3•30 + 30 = 90⁰ + 30⁰ = 120⁰