Radius of Circle
Define Radius of Circle.
The line joining the centre of the circle to any point in its circumference is called the radius of the circle. It is denoted by ‘r’ or ‘R’
How Many Radii can be drawn in Circle?
A circle can have infinite radii drawn inside it.
What is the Radius of Unit Circle?
A unit circle is a circle with a radius 1 unit.
What is the Relation between Radius and Diameter of Circle?
Diameter of a circle is twice the radius of the circle. Diameter = 2 × radius
How to Find Radius of Circle?
Radius of a circle is the found using various formulas that are,
- If the Diameter is known. Radius = Diameter / 2
- If Circumference is known. Radius = Circumference / 2π
- If Area is known. Radius = √(Area of the circle/π)
How to Find the Radius of Circle with Area?
To find the Radius of a Circle when Area is given, we use the following formula :
Radius = √(Area of the circle/π)
How to Find the Radius of Circle with Circumference?
To find the Radius of a Circle when Circumference is given, we use the following formula :
Radius = Circumference / 2π.
Radius of Circle
Radius of Circle: The radius of a circle is the distance from the circle’s center to any point on its circumference. It is commonly represented by ‘R’ or ‘r’. The radius is crucial in nearly all circle-related formulas, as the area and circumference of a circle are also calculated using the radius.
In this article, we are going to learn about the Radius of the Circle in detail, including its Formula, Equation, and How to Find it with the help of Examples.
Table of Content
- What is the Radius of Circle?
- Radius of a Circle Definition
- Diameter of Circle
- Radius, Diameter and Chord
- Secant to Circle
- Tangent to Circle
- Non-Intersecting Lines
- Radius Formula
- How to Find Radius of Circle?
- Radius of Sphere
- Radius of Circle Equation
- Chord of Circle Theorems
- Radius of Circle Examples
- Practice Questions on Radius of Circle