The radius of acircleis the distance from the center to any point on the boundary of the circle. It should be noted that the length of the radius is half of the length of the diameter. It can be expressed as d/2, where 'd' is the diameter of the circle or sphere. Observe the f...
The circle has a diameter of 8 cm. What's the radius of the circle? A. 2 cm B. 4 cm C. 6 cm D. 8 cm 相关知识点: 试题来源: 解析 B。本题考查圆的半径和直径的关系,半径=直径÷2,直径为 8 厘米,半径为 4 厘米。选项 A 是直径的四分之一,选项 C 是直径的四分之三,选项 D 是...
A circle has a radius of 5 units. What is its area? A. 身己心文克热部太国律商适同高受身己心文克热部太国律商适同高受25π square units身己心文克热部太国律商适同高受身己心文克热部太国律商适同高受 B. 社了先党动社了先党动15π square units社了先党动社了先党动 C. 证十证十...
A circle is probably the most common enclosed two-dimensional figure in ordinary geometry. Whenever we study the circle, we discuss its circumference, area, and diameter.The important formulas related to the circle are as follows:{eq}\text{Area of the circle}, A=\pi {{r}^...
A circle has a radius of 119.3 millimeters. What is the circumference of this circle? Use 3.14 for π. (Round your final answer to the nearest tenth)Circumference:In mathematics, the circumference is defined as the special case ...
The circle shown has centerR. If arcUSThas length 48π , what is the radius of the circle? 选项: A、18 B、24 C、32 D、48 E、64 答案: C 经典答疑 发起提问 提问: 点此查看答疑 1/4=48pai/2paiR R=96... 评分:0 浏览:520
What is the radius of the circlex⏫ – 10x + y⏫ + 4y – 20 = 0? 相关知识点: 试题来源: 解析 7 将原方程 \( x^2 - 10x + y^2 + 4y - 20 = 0 \) 配方整理: 1. 分离x和y项:\( x^2 -10x + y^2 +4y = 20 \)。 2. 对x部分配方:\( x^2 -10x + 25 = (x-5...
A circle has a diameter of 10 cm. What is the radius of the circle? A. 5 cm B. 10 cm C. 20 cm D. 2.5 cm 相关知识点: 试题来源: 解析 A。圆的半径是直径的一半,直径为 10 cm,所以半径为 10 ÷ 2 = 5(cm)。选项 B 是直径,选项 C 计算错误,选项 D 不符合半径与直径的关系。
A circle is the locus of all those infinite points that forms a round closed path around a fixed point and maintains a constant distance from the fixed point. This fixed point is called the center and constant distance is termed as the radius of the c...
The diameter and radius are all properties of a circle. The diameter is the largest chord in a circle, and it is the distance between two points on the circumference through the center of the circle. Half the diameter is known as radius....