Which student used the correct steps to construct parallelogram PQRS?

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|