⑴ 63X40-40X3綆渚挎柟娉曚笉浼氾紵
鏍規嵁棰樻剰錛屽圭畻寮忚繘琛岀畝渚胯$畻錛屽備笅錛40脳錛63-3錛=40脳60=2400閫氳繃璁$畻錛屽緢綆渚跨殑灝卞緱鍑虹瓟妗堜負2400銆
⑵ 45x3 48x3 48x2 濡備綍鐢ㄧ畝渚挎柟娉曡$畻錛
娌℃湁綆渚跨殑璁$畻鏂規硶錛屽彧鑳界洿鎺ヨ$畻錛屾寜鐓т箻娉曠殑榪愮畻娉曞垯渚濇¤$畻寰楀埌鐩稿簲鐨勭粨鏋溿