Jawaban:
A. 40 derajat
sudut ACB = sudut keliling
sudut AOB = Sudut pusat
sudut keliling = 1/2 × sudut pusat
= 1/2 × 80 derajat
= 40 derajat
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Jawaban:
A. 40 derajat
sudut ACB = sudut keliling
sudut AOB = Sudut pusat
sudut keliling = 1/2 × sudut pusat
= 1/2 × 80 derajat
= 40 derajat