Jawab:
Penjelasan dengan langkah-langkah:
lingkaran
sudut talibusur berhadapan jumlah 180
___
<A +<C = 180
<C = 180 - A
<C = 180 - 78 = 102
<B + <D = 180
<D = 180 - <B
<D = 180 -60
<D = 120
<C dan <D = 102 dan 120
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Jawab:
Penjelasan dengan langkah-langkah:
lingkaran
sudut talibusur berhadapan jumlah 180
___
<A +<C = 180
<C = 180 - A
<C = 180 - 78 = 102
<B + <D = 180
<D = 180 - <B
<D = 180 -60
<D = 120
<C dan <D = 102 dan 120