结果1 题目 In a circle with a radius of 2.5centimeters, a central angle has a measure of 5radians. What is the length, in centimeters, of the arc intercepted by the central angle? 相关知识点: 试题来源: 解析 12.5cm 12.5cm 反馈 收藏 ...
As in the figure,there are four circle with radius of 2.The four circles are apart from each other.Link their centers to form a quadrilateral,then the total area of the shaded parts in the figure is( ) A. 2π B. 4π C. 6π D. 8π 相关知识点: 试题来源: 解析 考点: 多边形...
Answer to: Graph a circle with a radius of 2 and shade the first quadrant of the circle. Make sure you mark your scales. By signing up, you'll get...
Points R and S lie on circle O with radius 2, and the area of sector ROS is π2. What fraction of the area of the circle is the area of sector ROS?相关知识点: 试题来源: 解析 18 or 0.125 Since circle O has a radius of 2, use the formula A=π r^2 to find the area of ...
As in the figure.there are four circle with radius of 2.The four circles are apart from each other.Link their centers to form a quadrilateral.then the total area of the shaded parts in the figure isA.2πB.4πC.6πD.8π
As in the figure.there are four circle with radius of 2.The four circles are apart from each other.Link their centers to form a quadrilateral.then the total area of the shaded parts in the figure is( ) A.2πB.4πC.6πD.8π
The area of a circle with a radius of 3 cm is equal to the area of a square. What is the side length of the square? A. 3 cm B. 3π cm C. 3√π cm D. 9 cm 相关知识点: 试题来源: 解析 C。解析:圆的面积为π×3×3 = 9π平方厘米。设正方形边长为 a,则 a×a = 9π,...
A. Diameter B. Circumference C. Center D. The distance from the center to the E. dge of the circle 相关知识点: 试题来源: 解析 D。本题考查圆规使用中的英语词汇“radius”的意思,radius 是半径,即从圆心到圆边缘的距离。A 选项是直径;B 选项是周长;C 选项是圆心。反馈 收藏 ...
The area of a circle with a radius of 3 cm is ___ square centimeters. A. 3π B. 6π C. 9π D. 12π 相关知识点: 试题来源: 解析 C。本题考查圆的面积公式。半径为 3 cm 的圆的面积是 A = πr² = π×3² = 9π 平方厘米。反馈 收藏 ...
A circle with a radius ofr units i centered at point M. Aline s tangent to the circleat point P and point N lies along this ine such that PN=4.If MN= 10, what is thevalue of r? 相关知识点: 试题来源: 解析 Theradius ofthecircle152.219.12units. ...