Q. 24
Mark (√) against the correct answer in the following:
Two adjacent sides of a triangle are represented by the vectors 
and 
The area of the triangle is
A. 41 sq units
B. 37 sq units
C. 
sq units
D. none of these
Answer :
Given the adjacent sides of the triangle are 
and 
Property: The area of the triangle with the sides 
and 
is 
=
= 
=41
=41
Therefore area of the triangle =
sq. units
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