Jawaban:
dut sudut
Penjelasan dengan langkah-langkah:
ACB = 55⁰
CGH = 80⁰ = CAB
∆ABC = 180⁰
ABC = 180⁰ - ACB - CAB
= 180⁰ - 55⁰ - 80⁰
======>>>>><<<<<<=========
segaris
∆ ABC = 180⁰
B = 180 - 70⁰ - C
= 110⁰ - C
x + 40⁰ + B. = 180⁰
x + 40⁰ + 110⁰ - C = 180⁰
x + 150⁰ - C = 180⁰
3x - 30⁰ + C = 180⁰ >ditambah biar C abis
4x + 120⁰ = 360⁰
4x = 360⁰ - 120⁰
x = 240⁰ / 4
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Jawaban:
dut sudut
Penjelasan dengan langkah-langkah:
ACB = 55⁰
CGH = 80⁰ = CAB
∆ABC = 180⁰
ABC = 180⁰ - ACB - CAB
= 180⁰ - 55⁰ - 80⁰
= 45⁰. (b)
======>>>>><<<<<<=========
segaris
∆ ABC = 180⁰
B = 180 - 70⁰ - C
= 110⁰ - C
x + 40⁰ + B. = 180⁰
x + 40⁰ + 110⁰ - C = 180⁰
x + 150⁰ - C = 180⁰
3x - 30⁰ + C = 180⁰ >ditambah biar C abis
4x + 120⁰ = 360⁰
4x = 360⁰ - 120⁰
x = 240⁰ / 4
= 60⁰ (D)