Mkt_NJM_RWS_C_UPC

姓名︰ 班別︰ 初中數學與生活 66 © 培生教育出版亞洲有限公司 2020 KS2 重温工作紙 22 圓周 例： (a) 圓周 = 7   m = 7  7 22 m = 22 m π =       取 22 7 (b) 圓周 = 3  2   cm = 3  2  3.14 cm = 18.84 cm ( 取  = 3.14) 求下列各圓的圓周。 22 7    =     取 (1 – 2) 1. 圓周 = 2. 求下列各圓的圓周。 ( 取  = 3.14) (3 – 4) 3. 圓周 = 4. 例： (a) 直徑 = 22 110 7        cm = 35 cm 圓周 = 110 cm π =       取 22 7 (b) 半徑 = (15.7  3.14  2) cm = 2.5 cm 圓周 = 15.7 cm ( 取  = 3.14)  7 m  3cm  O  O  21mm  14 m  5 cm  8 m 技巧提示 技巧提示 SAMPLE © Pearson Education Asia Limited 2020 All rights reserved; no part of this publication may be reproduced, photocopied, recorded or otherwise, without the prior written permission of Pearson.