Nabilah A

21 November 2023 05:15

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Nabilah A

21 November 2023 05:15

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Tolong bantu jawab ya makasih

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Sumara S

22 November 2023 01:23

<p>besar ∠AOC = 75°</p><p>besar ∠BOD = 145°</p><p>&nbsp;</p><p>a. besar ∠AEC = 2 x besar ∠AOC</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 2 x 75°</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 150°</p><p>b. besar ∠BEC = 180° - besar ∠AEC</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 180° - 150°</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 30°</p><p>&nbsp;</p><p>semoga membantu.</p>

besar ∠AOC = 75°

besar ∠BOD = 145°

 

a. besar ∠AEC = 2 x besar ∠AOC

                              = 2 x 75°

                              = 150°

b. besar ∠BEC = 180° - besar ∠AEC

                              = 180° - 150°

                             = 30°

 

semoga membantu.


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