동그란 각은 몇 도 ?. 360°. 1 시간은 동그란 각을 몇 등분 ?. 12 등분. 1 시간은 몇 도 ?. 360°÷12= 30°. 30 분은 몇 도 ?. 30°÷2=15°.
동그란 각은 몇 도 ?
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