Question

Given that: A(- 6, 9) and B(12, - 3) and C(0, 0) are the vertices of a triangle ABC. Point D lies on AC and E lies on BC such that AD : DC = BE : EC = 2 : 1. (i) Find the co-ordinates of D and E. (ii) Show that: DE = 1 3 AB (iii) Find the centroid of triangle ABC.​

Answer 1

Explanation:

coordinates of point is given as:

A=(2,2)

B=(1,4)

C=(5,5)

D=(0,4)

E=(2,-2)

F=(-5,-5)

(i) point A and E are mirror image in x-axis

(ii) There is no mirror image in y-axis

Answer 2

Explanation:

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