The radius of a circle is defined as a line segment that joins the center to the boundary of a circle. The distance from the center point to any endpoint on the circle is called the radius of a circle. Learn about the radius formulas with solved examples
Remote Authentication Dial-In User Service (RADIUS) is a distributed information exchange protocol that uses a client/server model. It protects a network against unauthorized access and is often used on networks that need to provide high security while a
RADIUS was originally designed to support large numbers of users connecting remotely to internet service providers (ISPs) or corporate networks via modem pools or other point-to-point serial line links. RADIUS is now commonly used forremote accessacross different types of networks, including wireless ...
The diameter of a circle is 8 cm. What is its radius? A. 2 cm B. 4 cm C. 6 cm D. 16 cm 相关知识点: 试题来源: 解析 B。本题考查圆的直径和半径的关系。“radius”是半径,“diameter”是直径,半径是直径的一半,直径 8 厘米,半径就是 4 厘米。A 选项 2 厘米错误;C 选项 6 厘米...
The area of a circle is 49π square meters. What is its radius? A. 7 meters B. 14 meters C. 21 meters D. 28 meters 相关知识点: 试题来源: 解析 A。本题考查圆的面积公式的逆运算。圆的面积公式是 S=πr²(S 是面积,r 是半径),已知面积是 49π 平方米,那么 r²=S÷π=49π÷...
The center of a circle is the center point in a circle from which all the distances to the points on the circle are equal. This distance is called the radius of the circle. Here, point P is the center of the circle. Interior and Exterior of a Circle ...
To ensure network security, enterprises can leverage the Okta RADIUS Server Agent to support authentication for VPN devices, virtual desktops, and network appliances that don’t supportSecurity Assertion Markup Language (SAML). The Okta RADIUS Server Agent installs as a Windows service and usesmulti...
The radius is2.1m, so: Area =3.1416... × (2.1m)2 =3.1416... × (2.1m × 2.1m) =13.854... m2 So the circle has an area of13.85 square meters(to 2 decimal places) Area of Difficult Shapes We can sometimes break a shape up into two or more simpler shapes: ...
A circular plate has an area of 16π square centimeters. What is its radius? A. 4 cm B. 8 cm C. 2 cm D. 16 cm 相关知识点: 试题来源: 解析 A。解析:圆的面积公式为πr²,已知面积为 16π,可得πr² = 16π,解得 r = 4cm。B 选项 8cm 代入面积公式结果为 64π 平方厘米;C ...
The area of a circle is 78.5 square meters. What is the radius? (Use 3.14 for π) A. 5 meters B. 10 meters C. 15 meters D. 20 meters 相关知识点: 试题来源: 解析 A。圆的面积=π×半径的平方,78.5÷3.14 = 25,半径 = 5 米。