Contact angle measurement has widely been used to characterize the properties of solid surfaces and study liquid–surface interactions. It has been known for some time that, while the measurement itself is deceptively simple, the interpretation is not straightforward and can be very complex. ...
In a quadrilateral, the sum of three angles is 270 degrees. What is the measure of the fourth angle? A. 75 degrees B. 90 degrees C. 105 degrees D. 120 degrees 相关知识点: 试题来源: 解析 B。四边形内角和为 360 度,已知三个角的和为 270 度,那么第四个角为 360 - 270 = 90 度。
A triangle has angles of 30 degrees, 60 degrees and 90 degrees. What is the measure of the largest angle? A. 30 degrees B. 60 degrees C. 90 degrees D. 180 degrees 相关知识点: 试题来源: 解析 C。本题考查三角形内角大小。在直角三角形中,90 度角是最大的角,所以选 C。A 选项 30 度...
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v) Measure two different objects, such as a pencil and a spoon, and ask them to calculate how much longer one is than the other using a ruler or tape measure. vi) Draw two lines of different lengths on a board and ask them to add or subtract to determine how much longer or short...
They are used to measure the execution time of code pieces. Don't use + for generating long strings — In Python, str is immutable, so the left and right strings have to be copied into the new string for every pair of concatenations. If you concatenate four strings of length 10, you...
In a right triangle, one of the acute angles is 30 degrees. What is the measure of the other acute angle? A. 30 degrees B. 60 degrees C. 90 degrees D. 150 degrees 相关知识点: 试题来源: 解析 B。在直角三角形中,两个锐角的和为 90 度。已知一个锐角为 30 度,所以另一个锐角为 90 ...
百度试题 结果1 题目A triangle contains angles measuring 25° and 75. What s the measure of the third angle? 相关知识点: 试题来源: 解析 third angle=180-2+75) =180-100 =80 反馈 收藏
The word “change” is the essence of what is happening in the world today. 对 错 The word “prerequisite” in Para. 3 probably means ___ required as a prior condition prior to request going after something There were many filled balloons in the cafeteria. 对 错 Using...
In normal life, time is a tool we use to measure the procession of events of space. But time is something more. Yes, we use time as a "tool", but time is essential for our physical existence. Space and time when used to describe events can't be clearly separated. Therefore, space ...