Matematika Sekolah Menengah Pertama Nilai x = .........................​

floydmayerulv – March 07, 2023

Nilai x = .........................​

100° + 5x + 3x = 180°

100° + 8x = 180°

8x = 180° - 100°

8x = 80°

x = 80°/8

x = 10°

opsi A

• Sudut pelurus => 180°

Maka:

100 + 5x + 3x = 180

100 + 8x = 180

8x = 180 - 100

8x = 80

x = 80 ÷ 8

x = 10° (A.)

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