Jawaban:
<AOD = 90°
<AOB + <BOC + <COD = 90°
3a+2a+a = 90°
6a= 90°
a= 15°
<AOC= <AOB+ <BOC
= 3a+2a
= 5a
=5 × 15°
= 75°
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Jawaban:
<AOD = 90°
<AOB + <BOC + <COD = 90°
3a+2a+a = 90°
6a= 90°
a= 15°
<AOC= <AOB+ <BOC
= 3a+2a
= 5a
=5 × 15°
= 75°