101 Things I Learned® in Engineering School

101 Things I Learned® in Engineering School

Matematika Sekolah Menengah Atas tolong bantuin besok dikumpulkan​

tolong bantuin besok dikumpulkan​

Penyelesaian:

a. Tentukan nilai x

Jawab:

Karena sudut tersebut Siku-siku maka,

( 2x + 2 )° + ( 3x - 2 )° = 90°

2x + 3x + 2 - 2 = 90

5x = 90

x = 90/5

x = 18°

b. Tentukan nilai dari x

Jawab:

( 3x + 20 )° + ( 2x ) = 180°

3x + 2x + 20 = 180

5x + 20 = 180

5x = 180 - 20

5x = 130

x = 130/5

x = 26°

Semoga Membantu CMIW^_^

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