Question

jay decides to install outdoor posts in his backyard. how can he ensure that each post is parallel to the other?
a. compare the lengths of the posts and verify they are the same.
b. compare the distances between the posts at different points and verify they are the same.
c. compare the densities of the posts at different points and verify they are the same.
d. compare the weights of the posts and verify they are the same.

Explanation:

• Option A: Length of posts being same does not imply parallelism. Parallelism is about orientation and distance - keeping, not length.
• Option B: If the distance between two lines (here, the posts can be considered as lines) is the same at different points, the lines are parallel. This is based on the geometric property of parallel lines.
• Option C: Density of posts is a material - related property and has no relation to parallelism.
• Option D: Weight of posts is a physical property and has no relation to parallelism.

Answer:

B. Compare the distances between the posts at different points and verify they are the same.