Question

A(2, -1), B(5, 3), C(-3, 11) are the vertices of

 ABC. (1) Find AB and AC. (2) Bisector of A

intersects

in D. (3) Find the coordinates of D.​

Answer 1

Answer:

Since arcs BC+AD = 180°, and 18:12 = 3/2,

arc CD=3x and arc AB=2x, so 5x=180 and x=36

So, arc AB=72° and arc CD=108°

Now you can use that to analyze ABCD, knowing the angles and lengths of all the sides.

Step-by-step explanation:

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