Mathematics
Junior High
この式の2分の1は、必ずどの式でも2分の1になりますか？？
それと何で2分の1になるのか教えてください！！🙇♀️
円錐の表面積
10cm
7cm
76X7² = 49π (cm³)
2
DX14πCX10=70πL
ここ!!
25π +65r = 90π (cm²)
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