Kruh
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Príkladové výpočty |
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Rozmery: |
Obsah: |
Obvod: |
r = 3 cm p = 3,142 |
S = p . r2 S = ? (cm2) S = 3,142 . 32 S = 3,142 . 9 S = 28,278 S = 28,278 cm2 |
O = 2 . p . r O = ? (cm) O = 2 . 3,142 . 3 O = 18,852 O = 18,852 cm |