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Perhatikan gambar berikut! Apabila  sejajar den...

Perhatikan gambar berikut!

Apabila KL sejajar dengan PO dan segitiga KLM adalah segitiga sama kaki dengan besar sudut straight M equals 34 degree.

Tentukan:

a. besar angle NLO;

Jawaban:

Ingat kembali bahwa jumlah sudut dalam segitiga adalah 180 degree, maka:

angle LKM plus angle KLM plus angle LMK equals 180 degree space space space space space space angle LKM plus angle LKM plus 34 degree equals 180 degree space rightwards arrow increment sama space kaki space space space space space space space space space space space space space space space space space 2 times angle LKM plus 34 degree equals 180 degree space space space space space space space space space space space space space space space space space space space space space space space space space space space 2 times angle LKM equals 180 degree minus 34 degree space space space space space space space space space space space space space space space space space space space space space space space space space space space 2 times angle LKM equals 146 degree space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space angle LKM equals fraction numerator 146 degree over denominator 2 end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space angle LKM equals 73 degree 

Sehingga:

angle NLO equals angle KLM rightwards arrow bertolak space belakang angle NLO equals angle LKM rightwards arrow increment sama space kaki angle NLO equals 73 degree 

Jadi, besar angle NLO adalah 73 degree.

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