The ramp has an angle of 30 degrees. What is the meaning of “angle” in this case? A. gradient B. speed C. distance D. time 相关知识点: 试题来源: 解析 A。“angle”在这种情况下指的是坡度,选项 A“gradient”有坡度的意思;选项 B“speed”是速度;选项 C“distance”是距离;选项 D“...
Two angles are complementary. One angle is 30 degrees. What is the measure of the other angle? A. 60 degrees B. 45 degrees C. 30 degrees D. 150 degrees 相关知识点: 试题来源: 解析 A。互补角之和为 90 度,一个角为 30 度,另一个角为 90 - 30 = 60 度。
An angle is 30 degrees more than its complementary angle. What is the measure of the angle? A. 60 degrees B. 30 degrees C. 45 degrees D. 75 degrees 相关知识点: 试题来源: 解析 D。设这个角为 x 度,它的补角为(90 - x)度。已知这个角比它的补角大 30 度,则 x = (90 - x) + ...
解析 C。本题考查三角形内角和为 180 度的英语表达及计算。已知两个角为 30 degrees(30 度)和 60 degrees(60 度),180 - 30 - 60 = 90 degrees,所以答案是 C。A 选项 70 degrees(70 度)、B 选项 80 degrees(80 度)、D 选项 100 degrees(100 度)均不符合。
A. 70 degrees B. 80 degrees C. 90 degrees D. 100 degrees 相关知识点: 试题来源: 解析 C。本题考查三角形内角和为 180 度的知识以及英语表达。180-30-60=90 度。A 选项 70 度错误;B 选项 80 度错误;D 选项 100 度错误。反馈 收藏
An angle is 30 degrees more than its supplementary angle. What is the angle? A. 75 degrees B. 105 degrees C. 135 degrees D. 150 degrees 相关知识点: 试题来源: 解析 B。设这个角为 x 度,其补角为 180 - x 度。由题意得 x = 180 - x + 30,解得 x = 105 度。
If an angle is 60 degrees and another angle is 30 degrees, what is the sum of these two angles? A. 80 degrees B. 90 degrees C. 100 degrees D. 120 degrees 相关知识点: 试题来源: 解析 B。解析:60 度加 30 度等于 90 度,这道题考查角度加法的基本运算,需要注意计算准确。
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...
One angle is measured as 60 degrees. What is the measure of the other angle? A. 30 degrees B. 90 degrees C. 120 degrees D. 210 degrees 相关知识点: 试题来源: 解析 B。两个角的和是 150 度,其中一个角是 60 度,那么另一个角就是 150 - 60 = 90 度。反馈 收藏 ...
What is the measure of the other angle? A. 55 degrees B. 65 degrees C. 45 degrees D. 35 degrees 相关知识点: 试题来源: 解析 A。直角为 90 度,一个角是 35 度,那么另一个角是 90 - 35 = 55 度。选项 B 65 度错误;选项 C 45 度错误;选项 D 35 度错误。 反馈 收藏 ...