
In mathematics, the centroid is the centre of a plane figure. It is the mean position and equidistant from all the points present on the boundary of the given figure.
The centroid of a triangle is the midpoint of the triangle. It is also the centre point of the triangle which is equidistant from all the points present on the triangle. The centroid of a triangle is obtained by the intersection of its medians. The point of intersection of the three medians of a triangle is called the centroid of that triangle.
A median is any line that joins the vertex of the angles of a triangle with the midpoint of the opposite side.
The median, which joins the centroid of a triangle from the midpoint of one side of the triangle to one of the vertices of the triangle, is divided by the centroid in the ratio of 2:1. For example,
In the given figure, ABC is a triangle whose sides are AB, BC and CA. P, Q and R are points on the sides BC, AB and CA respectively. Therefore, AP, CQ and BR are medians. The point of intersection of medians AP, CQ and BR is called the centroid V of the triangle.
Then point V divides CQ in 2:1 ratio as CV:VQ = 2:1
Then point V divides BR in 2:1 ratio as BV:VR = 2:1
Then point V divides AP in 2:1 ratio as AV:VP = 2:1
The centroid of a triangle possesses the following properties:
The centroid of a triangle can be calculated by a formula. However, the formula for the centroid of a triangle is applicable only for those triangles whose vertices are given. To obtain the centroid, the coordinates of the vertices of the triangle must be known. The following formula can be used to find the centroid when the coordinates of its vertices are given
C(x,y) = (x1 + x2 + x3)/3, (y1 + y2 + y3)/3
Where, x₁, x₂ and x₃ are the x coordinates of the vertices and y₁, y, and y, are the y-coordinates of the vertices of a triangle. For example,
C(x,y) = (1+2+3)/3, (1+2+3)/3
C(x,y) = (1,1)
are the coordinates of centroid C of the triangle.
JEE Main marks vs rank vs percentile
JEE Advanced Eligibility Criteria
JEE Advanced Chemistry Syllabus
JEE Advanced Registration Dates
Derivation Of Lens Maker Formula
Unit Of Pressure Velocity Uses of Plane Mirror
Wave Theory of Light
Unit of Density Unit of Light Unit of Force Unit of Magnetic Field Unit of wavelength Unit of Viscosity Uses of Electroplating Young's Modulus
What is the Scattering of Light
Lenz Law Space Wave Propagation Schrodinger Wave Equation Relation between Fahrenheit and Celsius Refractive Index Potentiometer Working Pascal Law Oscillatory Motion Optical Instruments Newton's Laws of Motion - First Law Modulation and Demodulation Magnetic Flux Lens Formula and Magnification Kaleidoscope Faradays Law Epsilon Naught Value Energy Bands Electrostatics Electroscope AC Generator Unit of Current Lithosphere Bending Equation Derivation Difference Between Pound and Kilogram Semiconductor Devices OTEC - Ocean Thermal Energy Conversion Hall Effect Rectilinear Propagation of Light Difference Between Ammeter and Voltmeter Coefficient of Linear Expansion Ampere’s Law Cyclone and Thunderstorm Save The Environment From Pollution Particle Nature of Light Types of DC Motor Uses Of Transistor Derivation of Phase Rule Unit of Humidity