Question

The vertices of a triangle are A(-2,-2,3), B(1,-5,-1), C(5,-3,9)
a) AD is median line of the triangle ABC, find
i) the coordinates of vector AD.
ii) the coordinates of point M such that ABMC is a parallelogram.
b) use the vector to prove that ∆ABC is a right angled triangle
c) use vector product to find the area of the parallelogram ABMC​

Answer 1

Answer:

Cordinate of A(2,5) D(4,8)

Step-by-step explanation:

2) A=23