DIFFERENT CENTRES OF TRIANGLE

In an equilateral triangle,prove that the centroid and centre of the circum-circle (circum centre) coincide.TO PROVE: The centroid and circum centre are coincident. CONSTRUCTION: Draw medians AD,BE and CF.

Questions OF half angle formula || Centres OF Triangle ( Incentre , Circumcentre ) & Illustration

Area OF Triangle || Quadrilateral || Centres OF Triangle

Half angle formula||Centres OF triangle

I is the in centre of Delta ABC . If angleBIC= 108^(@) then angleA =?

In Delta ABC, /_ A = /_ B + /_ C , then the circum centre is at ______

O is the Ortho centre of Delta ABC then A will be Orthocentre

A(0, 0), ,.B (-36, 15) and C(20, 15) are the verticies of Delta ABC . Find centroid, incentre, circum centre and ortho centre of Delta ABC .

Prove that he distance between the circum-centre and the ortho-centre of a triangle ABC is Rsqrt(1-8cosAcos BcosC.