百度试题 结果1 题目 ABC and BDA are right-angled triangles.AB\ =\ 6.5\ cm and BD\ =\ 4\ cmCalculate the length of CD. 相关知识点: 试题来源: 解析 3.1\ cm 反馈 收藏
top: right triangle bottom: equilateral triangle tri·an·gle (trī′ăng′gəl) n. 1. a.The plane figure formed by connecting three points not in a straight line by straight line segments; a three-sided polygon. b.Something shaped like such a figure:a triangle of land. ...
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Now, as some students will point out (or as may easily be illustrated in diagrams) not all triangles are right triangles. So again, there can be the question c?a,b, but now for an arbitrary triangle. On two types of learning (in mathematics) and implications for teaching Let's face ...
18. James cut out four identical right-angled triangles and formed the figure shown below. The figure has a perimeter of 72 cm. The shortest side of the triangle, BC,measures 9 cm.(a)Find the perimeter of each triangle.(b)The longest side of the triangle, AC, measures 6 cm shorter ...
百度试题 结果1 题目7. The figure below shows two identical right-angled triangles overlapping each other. Find the shaded area.6cm12.5tm17.14cm Ans: 2[3] 相关知识点: 试题来源: 解析 2 反馈 收藏
Triangle ABC and DCB are right-angled at A and D respectively and AC=DB. Prove that angle ABC is equal to angle DCB? Consider triangle ABC with the following conditions: a = 11 \; \textrm{ft}, \; b = 7 \; \...
How can right triangles be similar based on their angles? a) Which triangles are similar? b) Prove triangle similarity. c) What is the ratio of x to y? Determine if these triangles are similar. If they are, what postulate or theorem proves the similarity? a....
triangles ABC and DEF are congruent.what must be true about triangles ABC and DEFA)triangles ABC and DEF have the same areaB)triangles ABC and DEF have different perimetersC)triangles ABC and DEF each have a right angleD)triangles ABC and DEF have different angle measure 下载作业帮APP学习辅导...
As shown in the diagram, two identical right-angled triangles are put together and overlap. Find the area of the shaded part. (unit: cm)A2C10E Diagram for Question 4 相关知识点: 试题来源: 解析 (10-3+10)× 2÷2=17(cm^2) 【解析】 (10-3+10)× 2÷2=17(cm^2) ...