Circle, geometrical curve, one of the conic sections, consisting of the set of all points the same distance (the radius) from a given point (the centre). A line connecting any two points on a circle is called a chord, and a chord passing through the cent
结果1 题目 In circle , radius , tangent , and diameter are drawn. Which of the following is not necessarily true? ( ) A. B. C. D. the length of is greater than the length of 相关知识点: 试题来源: 解析 C 反馈 收藏 ...
The diameter of a circle is the distance across a circle directly through its center. The radius is one half of the diameter in measurement. The radius measures the distance from the very center of the circle to any point on the circle. You can calculate either of the measurements if you ...
1 As shown in the diagram, the diameter of the outer circle is 20 cm, and the radius of the inner circle is 6 cm. Find the perimeter of the shaded part. A C O D B Diagram for Question 11 相关知识点: 试题来源: 解析 11 60cm ...
Radius and Diameter What Is Pi? π pi π circumference π A Note on Units This page was written byStephen Clarke. You might also like... geometryfinding the diameter from the areafinding the circumference of a circle using radiusfinding the area of a circle using diameter ...
A.Radius B.Diameter C.Dimension D.Circumference 答案 D[解析] 名词辨析题。circumference意为“圆周;周长”,符合句意,故D为答案。radius意为“半径,半径范围”;diameter意为“直径”;dimension意为“维;尺寸;容积”。相关推荐 1___ is the length of the closed curve of a circle. A.Radius B.Diamete...
Find the diameter or radius of each circle in the diagrams below.(1)5.1cmRadius = 5.1cmDiameter = cm(2)13 cmDiameter = 13cmRadius = cm 答案 (1)10.2(2)6.5(1)d=2r=5.1×2=10.2cm.(2)r=d÷2=13÷2=6.5cm 结果二 题目 Find the diameter or radius of each circle in the diagrams be...
A small circle with the radius of I cm moves around a large circle with the diameter of 6 cm.How long does the small circle go?How many rounds does the small cicle move? 相关知识点: 试题来源: 解析 小圆绕大圆运动一周的距离等于大圆的周长=6π=18.84 cm 小圆绕大圆运动一周转过的圈数...
r = Circle radius ø = Circle diameter Diameter of Circle Enter the diameter of a circle. The diameter of a circle is the length of a straight line drawn between two points on a circle where the line also passes through the centre of a circle, or any two points on the circle, as ...
Practice worksheet on the radius, diameter, circumference, and area of a circle Formulas: 1) Circumference C = or C= 2) Diameter, d = 2r and radius , 3) Area of a circle , A = π r2 ---...