The measure of an angle is twice the measure of its complementary angle. What is the measure of this angle? A. 30 degrees B. 60 degrees C. 120 degrees D. 150 degrees 相关知识点: 试题来源: 解析 B。本题考查互补角的关系。设这个角为 x 度,则它的补角为 (90 - x) 度,由题可得 ...
结果1 题目 What is the measure of the angle in the figure below, accurate to two decimal places? (Figure not drawn to scale.) ( ) A. 23.20^( ° ) B. 31.00^( ° ). C. 58.41^( ° ) D. 25.21^( ° ) 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
The measure of an angle is twice the measure of its complementary angle. What is the measure of the angle? A. 30 degrees B. 60 degrees C. 90 degrees D. 120 degrees 相关知识点: 试题来源: 解析 B。设这个角为 x 度,它的补角就是 90 - x 度。已知这个角是其补角的两倍,可列方程 x...
If an angle is twice as large as its complementary angle, what is the measure of the angle? A. 30 degrees B. 60 degrees C. 45 degrees D. 75 degrees 相关知识点: 试题来源: 解析 B。设这个角为 x 度,它的补角就是 90 - x 度。因为这个角是它补角的两倍,所以 x = 2(90 - x),...
What is the measure of the smaller angle formed by the hour and minute hands of an accurate circular clock at 12:12 P.M. ( ). A.48∘ B.60∘ C.66∘ D.72∘ 答案 C相关推荐 1What is the measure of the smaller angle formed by the hour and minute hands of an accurate circul...
Observe the parallelogram. If one angle is 80 degrees, what is the measure of its adjacent angle? A. 80 degrees B. 100 degrees C. 180 degrees D. 20 degrees 相关知识点: 试题来源: 解析 B。平行四边形的邻角互补,和为 180 度。已知一个角为 80 度,其邻角 = 180 度 - 80 度 = 100 度...
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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...
Two complementary angles are in the ratio of 2:3. What is the measure of the smaller angle? A. 36 degrees B. 54 degrees C. 72 degrees D. 108 degrees 相关知识点: 试题来源: 解析 A。互补角和为 90 度,设两角分别为 2x 和 3x,可得 2x + 3x = 90,解得 x = 18,所以较小角为...
A triangle has angles in the ratio of 2:3:4. What is the measure of the largest angle? A. 40 degrees B. 60 degrees C. 80 degrees D. 100 degrees 相关知识点: 试题来源: 解析 C。解析:三角形内角和为 180 度,设三个角分别为 2x、3x、4x,2x + 3x + 4x = 180,9x = 180,x =...