Points, Lines and Planes Worksheet with Answer Key

What's on the worksheet

1. Decide which words are undefined terms and which are defined from them.
2. Use the slope test to decide whether sets of three points are collinear.
   (−4, 9), (0, 3), (6, −6)(−1, −5), (2, 1), (8, 12)(3, 8), (3, −2), (5, 4)(−6, −2), (−2, 1), (10, 10)(0, −4), (5, 0), (−10, −11)
3. Decide whether each name is a correct name for a line, segment or plane.
4. Use distances between campsites on Elena's map to decide which points are on one line.
5. Show three points are collinear whatever a and b are, then find the missing value.
6. Find the y-coordinate of the last fence post in line with the first two.
7. Decide which points of a triangular prism are coplanar.
8. Prove a fact about a line and a point using only three given rules.