What shape has two pairs of parallel sides and is not a rectangle? A. Rhombus B. Trapezoid C. Hexagon 相关知识点: 试题来源: 解析 A。哪个形状有两对平行边且不是矩形,梯形只有一对平行边,六边形没有两对平行边,菱形有两对平行边且不是矩形。反馈 收藏 ...
There is a shape with two pairs of parallel sides. What is it? A. rhombus B. parallelogram C. oval D. cone 相关知识点: 试题来源: 解析 B。“parallelogram”是平行四边形,有两对平行边。“rhombus”是菱形;“oval”是椭圆形;“cone”是圆锥。
Write a PHP program which reads the two adjoined sides and the diagonal of a parallelogram and check whether the parallelogram is a rectangle or a rhombus.According to Wikipedia- parallelograms: In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two ...
Two Sides Rhombus Shaped Cladding Hexagonal PCF with Low Confinement Loss and Negative DispersionConfinement LossDispersionEffective AreaNon-linear CoefficientPhotonic Crystal Fibre (PCF)A novel design of solid core photonic crystal fiber (PCF) has been proposed with seven rings rhombus inside eight rings...
Which shape has four sides and two pairs of parallel sides? A. rectangle B. rhombus C. trapezoid D. pentagon 相关知识点: 试题来源: 解析 A。哪个形状有四条边且有两对平行边,是长方形。选项 B 菱形四条边相等但不一定有两对平行边;选项 C 梯形只有一对平行边;选项 D 五边形有五条边。
A triangle with at least two sides that are the same length has at least one line of symmetry: True or false?Lines of Symmetry:In mathematics, a line of symmetry is a line that can be drawn on a two-dimensional shape, such that the shapes on ...
Starting from this most favorable position we considered a series of configurations with the chemical stoichiometry of MgnB2C (n=0.167,0.5,1,1.333,1.5,2) where Mg atoms were initially adsorbed onto the hollow site (H1) on both-sides of B2C. As a result of a structure optimization, the B2C...
The crosses are initially placed at random on a horizontal plate with three fixed rails that form three sides of a rectangular base (Fig. 4). We leave enough space between the crosses so that the initial area filling fraction is at least 2 to 3 times lower than in the jammed state, an...
Determine whether the statement is true or false. If two triangles are similar, the length of their sides are the same. Similar Shapes Two shapes are said to be similar if the ratio of corresponding side lengths is fixed. Congruent shapes are also...
the lattice can be named using a set of integers in the form (n1α1.n2α2.···) to represent a vertex surrounded by polygons in a clockwise sequence;nirepresents the number of sides on the polygon, and αidenotes the number of adjacent polygons of the same type14. Since we have ...