यदि किसी `vec(a),vec(b),vec(c )` के`Delta ABC` शीर्षो के स्थिति सदिश हो , तो `Delta ABC` के क्षेत्रफल का सूत्र लिखिए।

If vec(a), vec(b), vec(c ) are the position vectors of the vecrtices A, B, C of a Delta ABC respectively, find an expression for the area of Delta ABC and hence deduce the condition for the points A, B, C to be collinear.

If M is the mid point of the side BC of triangle ABC , and the area of triangle ABM is 18 cm^2 , then the area of triangle ABC is: यदि M triangle ABC के भुजा BC के मध्य बिंदु है, और triangle ABM का क्षेत्रफल 18 cm^2 , है, तो triangle ABC का क्षेत्रफल है :

Let vec a,vec b,vec c form sides BC,CA and AB respectively of a triangle ABC then

triangle ABC is similar to triangle DEF . If area of triangle ABC is 9 sq. cm. and area of triangle DEF is 16 sq. cm. and BC=2.1 cm. Then the length of EF will be triangle ABC, triangle DEF के समरूप है। यदि triangle ABC का क्षेत्रफल 9 वर्ग से.मी. हो और triangle DEF का क्षेत्रफल 16 वर्ग से.मी. हो ओर BC = 2.1 से.मी. हो तो EF की लम्बाई बताइए?

If A,B and C are the vertices of a triangle with position vectors vec(a) , vec(b) and vec(c ) respectively and G is the centroid of Delta ABC , then vec( GA) + vec( GB ) + vec( GC ) is equal to

If A,B and C are the vertices of a triangle with position vectors vec(a) , vec(b) and vec(c ) respectively and G is the centroid of Delta ABC , then vec( GA) + vec( GB ) + vec( GC ) is equal to

In triangle ABC, find vec(AB)+vec(BC)+vec(CA)