What is the measure of the acute angle formed by the hands of the clock at 4:20 PM?( ). A: DB: 5 C: 8 D: 10 E: 12 相关知识点: 试题来源: 解析 D下午4点20分时针和分钟形成的锐角是多少?把时钟想象成一个圆圈.分针将在一小时后20分钟的4点钟.在4和5之间形成的圆心角是30度(为它是...
The minute hand will be at the at minutes past the hour. The central angle formed between and is degrees (since it is of a full circle, ). By , the hour hand would have moved way from to since is reducible to . One third of the way from to is one third of degrees, which ...
An angle is formed when two rays are joined at their endpoints. Angles are usually measured in degrees. Learn all types of Angles in Geometry with interesting concepts, solved examples, interactive worksheets & solutions with Cuemath
解析 145The smaller angle between the number 12 and the minute hand is 10×6∘=60∘;The smaller angle between the number 12 and the hour hand is 3×30∘−1060×30∘=90∘−5∘=85∘;60∘+85∘=145∘. 结果一 题目 What is the acute angle between the hands of a ...
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...
If an angle measures 180 degrees, what is it? A. Acute angle B. Right angle C. Obtuse angle D. Straight angle 相关知识点: 试题来源: 解析 D。180 度的角是平角,选 D。选项 A 锐角小于 90 度,选项 B 直角是 90 度,选项 C 钝角大于 90 度小于 180 度。
1. At least two angles of any triangle are acute angles. 2. In a 180˚angle, if one angle is obtuse (more than 90˚), the other will always be an acute angle (less than 90˚). Solved Examples On Acute Angle Question 1:The measure of three angles is as follows: ...
Yes, someone can have a "severe" demeanor, meaning strict or stern. 8 Does "severe" always indicate something negative? Generally, "severe" indicates extremity, which can be negative, but context matters. 5 Are acute conditions always severe? Not necessarily. Acute indicates onset, while severe...
The difference between an acute accent and a grave accent is the way they sound when they're spoken. While an acute accent is...
结果1 题目 It is 4 p.m. now. What will be the size of the acute angle formed by the hour hand and the minute hand 6 hours later? A. 30^{\circ} B. 60^{\circ} C. 80^{\circ} D. 150^{\circ} 相关知识点: 试题来源: 解析 B 反馈 收藏 ...