Given: The image shown in the question
To Determine: 3 collinearpoints
Solution
Collinear points are the points that lie on the same straight line or in a single line. If two or more than two points lie on a line close to or far from each other, then they are said to be collinear
d. Therefore Points D, G, and F are collinear
Coplanar points are three or more points which lie in the same plane. Recall that a plane is a flat surface which extends without end in all directions.
e. Therefore, the points A, D, G, and F are coplanar points
If two planes intersect each other, the intersection will always be a line
f. Thereffore, the intersection of plane ABC and plane ABE is the line AB
g. The intersection of planes BCH and DEF.
From the image, there is no intersection between the planes BCH and DEF
h. The intersection of line AD and line DF is point D