11 The equation of a circle with centre C is x2+ y2-8x+ 4y-5 = 0.(a) Find the radius of the circle and the coordinates of C.3]...…-nwng...--...-...-...-.--.--...-..---...-.-..-The point P (1, 2
times of its circumstance, find the radius of this circle. 若一圆形的面积是周界的7倍,求该圆形的半径.相关知识点: 试题来源: 解析 14. 结果一 题目 【题目】If the area of a circle is 7 times ofits circumstance, find the radius of this circle若一圆形的面积是周界的7倍,求该圆形的半径 答案...
14. A circle has centr e^candequationx^2+y^2-6x+14y+49=0(a)Find the centre of the circle.(...)(2)(b)Find the radius of the circle(2) 相关知识点: 试题来源: 解析 (a)(x-3y)^2-9^2+14y+4y=0.99-0.92-0.96+3.29)=99(3,7)(b)3 反馈 收藏...
The radius of a sphere or a circle is the distance from its center to its circumference. For any regular polygon, the radius is the same from the center to all its vertices. A circle is a regular polygon where the distance from the center to any of its edges is the same. The radius...
Find the equation of the circle passing through the points of intersections of circlesx2+y2+6x+4y−12=0,x2+y2−4x−6y−12=0, and having radius√13. View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, ...
结果一 题目 Find the center and the radius of the circle then graph X^2+y^2-2x-10y+20=0 center() Radius() 答案 (x-1)^2+(y-5)^2=6center(1,5)radius=根号6相关推荐 1Find the center and the radius of the circle then graph X^2+y^2-2x-10y+20=0 center() Radius() ...
结果1 题目 Find the area of the region bounded by the two circle intersecting each other at two points. The radius of the circles is 8 cm and central angle is90° E A)18 cm2B)17.96 cm2c)18.29 cm2D)16 cm2E)None of these 相关知识点: 试题来源: 解析 E 反馈 收藏 ...
The radius of a circle is the line segment from the center of a circle to a point on the boundary of a circle. Is a radius half of a diameter? Yes, the radius of a circle is half of the diameter because the diameter is the line segment that passes through the center of a circle...
Find the radius, r cm, of a circle, given that a sector of the circle has an area of (9π )8 cm2 and the sector subtends an angle of (π )4 radians at the centre of the circle. 相关知识点: 试题来源: 解析 3 cm 反馈 收藏 ...
Because all circles have the same shape, their different measurements are related by a set of simple equations. If you know the radius, diameter, area or circumference of a circle, it is fairly easy to find any of the other measurements.