C. ½Ã³ªºê·Î (³ªÀ̽º2)
< ħ´ëÄ¿¹ö> ¸ðÀÚÇü 42,000 Ä¡¸¶Çü 68,000 º£°³ 30*50 = 14,000 < ½ÃÆ® > 90*135 = 17,000 190*135 = 34,000 * °æ¶ô 3,000¿ø Ãß°¡ * ´ÜÁ¾»ö»óÀÌ ÀÖÀ» ¼ö ÀÖ½À´Ï´Ù * - ¸ÕÀú ¹®ÀÇ ¹Ù¶ø´Ï´Ù -