14.若菱形两条对角线的长分别为12cm和16cm,则这个菱形的周长为( )
0 282071 282079 282085 282089 282095 282097 282101 282107 282109 282115 282121 282125 282127 282131 282137 282139 282145 282149 282151 282155 282157 282161 282163 282165 282166 282167 282169 282170 282171 282173 282175 282179 282181 282185 282187 282191 282197 282199 282205 282209 282211 282215 282221 282227 282229 282235 282239 282241 282247 282251 282257 282265 366461
| A. | 10cm | B. | 20cm | C. | 28cm | D. | 40cm |