百度试题 结果1 题目26. If an angle turns through of a circle, what kind of an angle is formed?D A. acute B. obtuse C. one-degree D. right 相关知识点: 试题来源: 解析 D 反馈 收藏
Central Angle of a Circle A central angle is an angle whose vertex is the center of the circle. Each side of the angle that radiates from the center to a point on the circle is called a radius. a central angle Convex Whenever a central angle is formed inside a circle, two possible ...
7.any of the four interceptions of the equatorial circle by the horizon and the meridian. 8.angle iron (def. 2). v.t. 9.to move or bend in an angle. 10.to set, direct, or adjust at an angle:to angle a spotlight. 11.to slant (a piece of reporting) toward a particular point...
百度试题 结果1 题目【题目】The radius of a circle is 15 feet. What is theangle measure of an arc feet long?=π ftr=15 ftGive the exact answer in simplest form. 相关知识点: 试题来源: 解析 【解析】a_n=e/(360)*2πx 反馈 收藏 ...
O is the centre of a circle. A, B, C and D are points on the circumference. Angle . Work out the size of angle COD. Give a reason for each step of your working. 相关知识点: 试题来源: 解析 (opposite angles of a cyclic quadrilateral add to )OC=OD (radii same circle) (...
Informal. a secret motive: She's been too friendly lately—what's her angle? Astrology. any of the four interceptions of the equatorial circle by the two basic axes, the horizon and the meridian: commonly identified by the compass directions. angle iron ( def 2 ). verb (used with object...
If the radius of a circle is 5 cm and the measure of a central angle is 90 degrees, what is the length of the corresponding arc? A. 5π/2 cm B. 5π cm C. 10π cm D. 2.5π cm 相关知识点: 试题来源: 解析 A。弧长公式为 L = nπr/180,其中 n 为圆心角度数,r 为半径。
The measure of an arc can be found by dividing that arc's length (s) by the circle's radius (r). (s/r) = (arc's length / circle's radius) The resulting answer is written in radians, and can be converted to degrees by multiplying that number of radians by 180, then dividing by...
Noun1.hour angle- the angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body distance- the property created by the space between two objects or points 2.hour angle- (astronomy) the angular distance of a celestial point measured ...
What is the reference angle for 4pi over 3? The reference angle for 4π/3 is π/3. 4π/3 is equivalent to 240°, which is in the third quadrant of a circle. As such, the reference angle is equal to the angle minus π, which in this case is π/3. ...