百度试题 结果1 题目 In a triangle with an acute angle, an obtuse angle, and a 60∘ angle, the obtuse angle could be( ). A. 30∘ B. 90∘ C. 110∘ D. 120∘ 相关知识点: 试题来源: 解析 C 反馈 收藏
解析 B。中文解析:有一个角等于 90 度的三角形是直角三角形(right-angled triangle),acute-angled triangle(锐角三角形)三个角都小于 90 度,obtuse-angled triangle(钝角三角形)有一个角大于 90 度,isosceles triangle(等腰三角形)是按边分类的。反馈 收藏 ...
If the measure of one angle of a triangle is greater than 90∘, the other angles must each have measures less than 90∘. They are both acute. 如果三角形的一个角是锐角,而三角形的第二个角是钝角,那么三角形的第三个角必须是什么( ). A.锐角 B.钝角 C.直角 D.不等边 如果三角形的一个...
In a right triangle, if one acute angle measures 30 degrees, what is the measure of the other acute angle? A. 30 degrees B. 45 degrees C. 60 degrees D. 90 degrees 相关知识点: 试题来源: 解析 C。在直角三角形中,两个锐角之和为 90 度。已知一个锐角为 30 度,所以另一个锐角为 90...
A. Right Triangle B. Obtuse Triangle C. Equilateral Triangle D. Isosceles Triangle 相关知识点: 试题来源: 解析 C。本题考查三角形角的类型。直角三角形有一个直角,钝角三角形有一个钝角,等边三角形的三个角都是锐角,等腰三角形的角不一定都是锐角。反馈...
In a right triangle, one of the acute angles measures 45 degrees. What is the measure of the other acute angle? A. 45 degrees B. 60 degrees C. 30 degrees D. 90 degrees 相关知识点: 试题来源: 解析 A。在直角三角形中,两个锐角的和是 90 度。已知一个锐角是 45 度,那么另一个锐角...
In a right triangle, one acute angle is 30°, then the other acute angle is: A. 30° B. 45° C. 60° D. 90° 相关知识点: 试题来源: 解析 C。因为直角三角形两锐角之和为 90°,一个锐角为 30°,所以另一个锐角为 90° - 30° = 60°。反馈 收藏 ...
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 ...
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