Find (to the nearest degree) each angle of the triangle with ...

[tfester]

Find (to the nearest degree) each angle of the triangle with vertices A(1, 1, 1 ), B(0, 0, 3 ), and C(4, -1, -3 ).
 
  What will be an ideal response?

Question 2

Given the points A(1, 3, -4 ), B(3, 8, 6 ), C(-1, 2, -4 ) and D(-4, 4, -5 ), determine whether or not the points are coplanar. If not, find the volume of the pyramid formed with these points as its vertices.
 
  What will be an ideal response?

[Brummell1998]

Answer to Question 1

133, 30, 17

Answer to Question 2

not coplanar; V= 13

[tfester]

Thanks for the timely response, appreciate it

[milbourne11]

Gracias!