Materi : Garis dan Sudut
Gambar yang Terlampirkan
Pemisalan titik tengah CD adalah E
= 180° - 42° - 90° = 180° - 132° = 48°
Maka ketemu ∠BOE
= 360° - 180° - 48° = 132°
= 70° - 48° = 22°
Maka ketemu ∠AOB = 180° - 44° = 136°
∠AOD = 360° - ∠AOB - ∠DOE - ∠BOE
= 360° - 136° - 48° - 132°
= 180° - 136°
= 44°
Semoga bisa membantu
[tex] \boxed{ \colorbox{darkblue}{ \sf{ \color{lightblue}{ answered\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
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Verified answer
Materi : Garis dan Sudut
Gambar yang Terlampirkan
Pemisalan titik tengah CD adalah E
∠CBD = ∠DOE
= 180° - 42° - 90° = 180° - 132° = 48°
Maka ketemu ∠BOE
= 360° - 180° - 48° = 132°
∠ABD = ∠OAB
= 70° - 48° = 22°
Maka ketemu ∠AOB = 180° - 44° = 136°
Kesimpulan
∠AOD = 360° - ∠AOB - ∠DOE - ∠BOE
= 360° - 136° - 48° - 132°
= 180° - 136°
= 44°
Semoga bisa membantu
[tex] \boxed{ \colorbox{darkblue}{ \sf{ \color{lightblue}{ answered\:by\: BLUEBRAXGEOMETRY}}}} [/tex]