Explain orthocentre centroid. incentre ofa.triangle with figure .

Dear student,

Let in ∆ABC, AD, BE and CF are medians (where D, E and F are midpoints of BC, CA and AB respectively) which are concurrent line segments intersecting at G. Then G is called the centroid of ∆ABC.

Now, in ∆ABC, if AL, BM and CN are altitudes corresponding to sides BC, CA and AB respectively such that they are concurrent and intersecting at O, then O is called the orthocentre of ∆ABC.

Again, in same ∆ABC, if AP, BQ and CR are internal angle bisectors of angle BAC, angle ABC and angle ACB respectively which are also concurrent and intersecting at point I, then I is called the incentre of ∆ABC.

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