આકૃતિમાં, AC=BC,\\ /_D CA=/_E CB\\ અને\\ /_D BC=EA Cdot\nતે ત્રિકોણ DBC\\ a... સાબિત કરો.

In DeltaABC, D is any point on side BC. Prove that AB+BC+CA gt 2AD

In Fig, 2.38, (a) is CA+CB=AB ? (b) is BA+AC=CB ? (c ) is AB+BC=CA ?

Three charges each +q , are placed at the corners of an isosceles triangle ABC of sides BC and AC, 2a, D and E are the mid-points of BC and CA . The work done in taking a charge Q from D to E is

Three charges each +q, are placed at the corners of an isosceles triangle ABC of sides BC and AC, 2a D and E are the mid point of BC and CA. The work done in taking a charge Q and D to E is :

The incircle of an isosceles triangle ABC, in which AB = AC, touches the sides BC, CA and AB at D, E and F respectively . Prove that BD = DC.