A. Parallelogram B. Equilateral triangle C. Regular hexagon 相关知识点: 试题来源: 解析 B。A 选项“Parallelogram”是平行四边形,B 选项“Equilateral triangle”是等边三角形,三条边相等,三个角也相等。C 选项“Regular hexagon”是正六边形。反馈 收藏 ...
解析 A。选项 A“square”是正方形,有四条相等的边和四个直角;选项 B“parallelogram”是平行四边形,对边相等;选项 C“rhombus”是菱形,四条边相等但不一定有直角;选项 D“trapezoid”是梯形,四条边不一定相等也不一定有直角。所以答案是 square。反馈 收藏 ...
Which shape has four right angles? A. rectangle B. trapezoid C. parallelogram 相关知识点: 试题来源: 解析 A。A 选项 rectangle 是长方形,有四个直角。B 选项 trapezoid 是梯形,没有四个直角。C 选项 parallelogram 是平行四边形,一般没有四个直角。
Show that the diagonals of a square are equal and bisect each other at right angles. View Solution Which of the following statements are true for a rhombus? View Solution Which of the following statements are true (T) and which are false (F)? In a parallelogram, the diagonals are equal....
A. Four congruent sides. B. Diagonals bisect the angles. C. Diagonals are perpendicular. D. Four right angles. What is a quadrilateral shape with adjacent sides not equal; 2 pairs of congruent sides; 4 right angles? Which of the is not a property of all parallelograms? a. the diagonals...
A midpoint of a line or segment is one that is the same distance from the start and endpoint of the segment. It also divides the segment into two equal segments. Answer and Explanation: To solve this question we must take into account the...
Calculate the area of the quadrilateral ABCD as shown in Fig.33, given that BD=42 cm , AC=28 cm , OD=12 cm and AC⊥BD . View Solution Which of the following pairs of triangles are congruent? If they are congruent, write out the pairs of equal angles. ABC:AB=3cm, BC=4cm, CA=...
A) 4.5, 5.34, 5.89, 6.54 B) 4.56, 5.34, 5.89, 6.56 C) 4.34, 5.12, 5.9, 6.68 2. 9.78f + 1.2 If f represents the number’s position in the sequence, which pattern of numbers does the expression describe? A) 10.98, 20.76, 30.56, 40.39 B) 10.98, 20.56, 30.67, 45.98 C) 10.98...
A more specific object is to provide a low center of gravity in such a machine structure and in the arrangement of the base support and drive connection at the bottom part of the machine. A still further feature of my present machine consists of the parallelogram form of operative connection...
Step 1: Understand the properties of a rhombus A rhombus is a type of quadrilateral that has the following properties: - All four sides are equal in length. - The diagonals bisect each other at right angles (90 degrees). Conclusion