Use the formul a for radian measure to calculate the measure of a central angle in a circle having a radius of 12 cm and intercepting an arc of 21 cm The angle has a measure of radians. 相关知识点: 试题来源: 解析 Q=s/r=(21)/(12) 1.75 radians ...
The angle is 120 degrees. How many radians is it? A. 2π/3 B. π/3 C. 4π/3 D. 5π/6 相关知识点: 试题来源: 解析 A。因为 180 度等于 π 弧度,所以 1 度等于 π/180 弧度。120 度换算为弧度是 120×π/180 = 2π/3 弧度。选项 B π/3 是 60 度换算的结果;选项 C 4π/...
百度试题 结果1 题目【题目】Which of the following is the measure of theabove angle in radians?((5π)/3 B.(7π)/4 C.(11π)/6 D.(23π)/(12) 相关知识点: 试题来源: 解析 【解析】A 反馈 收藏
When a question asks about the arc, use the formula with the measure of the central angle in radians. Since you're literally looking for the fraction of the arc's length to the circumference of the circle, all that is needed to solve this problem is ...
When the length of an arc of a circle is equal to the radius of the circle, the angle subtended by that arc equals one radian. ra·di·an (rā′dē-ən) n.Abbr.rad A unit of angular measure equal to the angle subtended at the center of a circle by an arc equal in length to...
题目In the triangle above, . If the length of is and the measure of angle is radians, what is the area of the triangle? ( ) A. B. C. D. 相关知识点: 试题来源: 解析 C Since , and . and Area is .反馈 收藏 ...
Convert the angle measure from radians to degrees. Round to three decimal places. {eq}-0.57~\text{radians} {/eq} Units of Angles: In mathematics, we can refer to an angle using two different units of measurements. First, we could use degrees to express the angle...
285. In radians, what is the angle formed between the x-axis a dy=3/5x+1/2 B(A)0.464(B)0.540(C)1.030(D)1.107(E)1.667 相关知识点: 试题来源: 解析 BThe slope of this line is 3/5=(Δy)/(Δx), so one can draw a perpendicular line to the x-axis and obtain a right ...
Radians A more intrinsic way to measure angles compared to degrees. The sine of an angle in Radians has a power series representation. 5 Degrees One of a series of steps in a process, course, or progression; a stage Proceeded to the next degree of difficulty. Radians Often used in physics...
Find the angle in radians between the planes 3x+z=1 and 4y+z=1. Find the measure of the angle in radians between the two planes: 4 x - 4 y + 5 z = 10 -1 x - 4 y +2 z = 15 Find the angle between planes 2x + 3y + z + 1 = 0 and x + 2y - 3z -4 = 0...