꒦ꄲ꒒꒤ꂵꏂ
πr² × t
22/7 × ( 35 ÷ 2 )² × 34
22/7 × 17,5² × 34
22/7 × 17,5 × 17,5 × 34
22 × 2,5 × 2,5 × 34
55 × 85
4.675 cm³
D = 2 × R
R = D : 2
R = 35 : 2
R = 17,5 cm
V = 22/7 × 17,5 × 17,5 × 34
V = 22 × 2,5 × 2,5 × 34
V 55 × 2,5 × 34
V = 137,5 × 34
V = 4.675 cm³
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꒦ꄲ꒒꒤ꂵꏂ
πr² × t
22/7 × ( 35 ÷ 2 )² × 34
22/7 × 17,5² × 34
22/7 × 17,5 × 17,5 × 34
22 × 2,5 × 2,5 × 34
55 × 85
4.675 cm³
D = 2 × R
R = D : 2
R = 35 : 2
R = 17,5 cm
V = 22/7 × 17,5 × 17,5 × 34
V = 22 × 2,5 × 2,5 × 34
V 55 × 2,5 × 34
V = 137,5 × 34
V = 4.675 cm³