Please dicari ya kak​

By Posted on

Please dicari ya kak​

Please dicari ya kak​

<<< MATH ERPRAMZ >>>

1) DIKETAHUI :

  1. BESAR ∆OCB = 65°

TENTUKAN :

BESAR ∆AOC !

JAWAB :

JUMLAH SUDUT DI SEGITIGA = 180°

MAKA :

∆BOC + ∆OCB + ∆OBC = 180°

= ∆BOC + 65° + 65° = 180°

= ∆BOC + 130° = 180°

= ∆BOC = 50°

JUMLAH SUDUT LURUS = 180°

• ∆BOC + ∆AOC

• 50° + ∆AOC = 180°

• ∆AOC = 130° [ D ]

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Jawaban:

∆COB = 180 – (65 + 65)

∆COB = 180 – 130

= 50

∆AOC = 180 – 50°

= 130° [D]