Try Now for FREE
- 1. Select your country from the
dropdown. - 2. Mobile : Enter just the mobile no. without any codes
- 3. Landline : Enter the
STD code followed by the phone no. Example 040-66979999.
CBSE - X
Area of Triangle
Area of triangle is half the product of its base and corresponding altitude if the base and altitude are given.
If a, b and c are sides of a triangle then its area is given by herons formula 
.
we can calculate the area of a triangle even if its three vertices are given. If (x1, y1), (x2, y2) and (x3, y3) are the vertices of a triangle
then its area is given by 
square units.
If the area of triangle is zero then the points are called collinear points or vice-versa.
Area of triangle = 
square units.
If area of triangle is zero then the points are collinear.
