【题目】完成下表。
圆的半径r | 圆的直径d | 圆的周长C | 圆的面积S |
2dm | (___________) | (___________) | (___________) |
(___________) | (___________) | 6.28dm | (___________) |
(___________) | 8m | (___________) | (___________) |
【题目】完成下表。
圆的半径r | 圆的直径d | 圆的周长C | 圆的面积S |
2dm | (___________) | (___________) | (___________) |
(___________) | (___________) | 6.28dm | (___________) |
(___________) | 8m | (___________) | (___________) |