October 2018 1 50 Report
1. hitunglah sudut ketiga dalam segitiga yang dua sudutnya diketahui seperti berikut!

A. 20⁰ , 60⁰ =
B. 49⁰ , 36⁰ =
C. 40⁰ , 70⁰ =
D. 60⁰ , 60⁰ =
E. 108⁰ , 42⁰ =
F. 14⁰ , 76⁰ =

2. Δ ABC siku-siku di A. Besar < B kurang 24⁰ dari besar < C. hitunglah besar < B dan < C !

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