【题目】填一填.
圆的半径r | 圆的直径d | 圆的周长C | 圆的面积S |
2dm | (_______) | (_______) | (_______) |
(_______) | (_______) | 6.28dm | (_______) |
(_______) | 8cm | (_______) | (_______) |
(_______) | (_______) | (_______) | 12.56cm2 |
【题目】填一填.
圆的半径r | 圆的直径d | 圆的周长C | 圆的面积S |
2dm | (_______) | (_______) | (_______) |
(_______) | (_______) | 6.28dm | (_______) |
(_______) | 8cm | (_______) | (_______) |
(_______) | (_______) | (_______) | 12.56cm2 |