A.
a.) point A
b.) point D,E and F
c.) line K
d.) line HJ or JH
e.) plane DEF or any
f.) plane HJI or any
g.) point G
h.) point B
i.) All the point
j.)
B. The simplest way to determine if a point lies inside a triangle is to check the number of points in the convex hull of the vertices of the triangle adjoined with the point in question. If the hull has three points, the point lies in the triangle's interior; if it is four, it lies outside the triangle.
