right-angled triangle Triangle in which one of the angles is a right angle (90). It is the basic form of triangle for defining trigonometrical ratios (for example,sine, cosine, and tangent ) and for which Pythagoras theorem holds true. Its are a is equal to half the product of the len...
right angle是名词,直角,triangle是三角形,也是名词, 所以在形容直角三角形时,实际上是指直角的三角形,因此需要变成形容词 在angle后面加d,就是把直角变成直角的 分析总结。 所以在形容直角三角形时实际上是指直角的三角形因此需要变成形容词结果一 题目 right angled triangle 为什么angle后加个dright angle 不就是...
right angled triangle 英 [ˌraɪt æŋɡld ˈtraɪæŋɡl] 美 [ˌraɪt æŋɡld ˈtraɪæŋɡl]网络 直角三角形
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback. But the principle is a mainstay of math class and enables the calculation of the length of any side of a right-angled triangle — as long as the lengths of the other two side...
A right triangle has a right angle. 直角三角形有一个角是直角。 This is similar to the right triangle test. 这与直角三角形测试类似。 权威例句 Equable Shape Some problems of Diophantine approximation: The lattice-points of a right-angled triangle. (Second memoir.) ...
17. The right-angled triangle ABC has sides with lengths a and b as shown. The ratio of the are a of the shaded square to the are a of triangle ABC is AC aB(A)(ab)/(a+b) (B)ab(ab)/((b-a)^2) (C)(2ab)/(a^2+b^2)2ab ab(D)(2ab)/((a+b)^2) (E)(ab)/((a...
A right-angled triangle (also called a right triangle) has a right angle (90°) in it.The little square in the corner tells us it is a right angled triangle (I also put 90°, but you don't need to!)The right angled triangle is one of the most useful shapes in all of ...
28In the figure below, ABC is a right-angled triangle. EF is parallel to GH.Find ∠BCH.E77°50°B GC H∠ACB =180°-90°-50°=40°∠ACH =77°∠BCH =77°-40°=37°37ūAns:O 相关知识点: 试题来源: 解析 ∠ACB=180°-90°-50°=40° ∠ACH=77° ∠BCH=77°-40°=37°37 ...
Sign in to download full-size image Figure 5. Pythagoras theorem Bhaskara II’s proof of Pythagoras theorem. Let ABC be a right angled triangle, with right angle at C, with AB=c, AC=b, and BC=a. Complete the square ABED with each side=c. Draw EM1 perpendicular to CB. Draw DM2 ...
Definition of right-angled triangle noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.