The area of a rectangle is the product of the lenghths of two adjacent sides . 长方形的面积是相邻两边的长的乘积。
Analysis on the vibration reduction in tunnel contour induced by adjacent side blasting 邻近侧向爆破作用下既有隧道减震问题分析
In parallelogram abcd , two adjacent sides ' ratio is 2 : 5 . perimeter = 28cm . be . cf bisect angleabc and angle bcd to meet e , f on ad respectively . length of ef is 已知一等腰梯形的两底边长的差等于一腰的长,那麽它的腰和下底的夹角是