The area of a triangle from its three vertices can be found using:
AMatrices
BSequences
CVectors
DLogarithms
Answer & Solution
Correct answer: C. Vectors
1. Two sides of the triangle become vectors from one vertex.
2. Half the magnitude of their cross product gives the area.
3. So the area is found using vectors.
_Source: NCERT Class 12 Mathematics Part II, Chapter 10, Vector Algebra._
Related questions
The result a cross b is a:The area of a parallelogram with sides a and b uses the magnitude of their:For mutually perpendicular unit vectors, i cross j equals:The cross product of two nonzero vectors is zero when they are:The angle between two vectors can be found in terms of their:The vector product is an operation that is:The scalar product is an operation that is:The scalar product obeys laws that are: