What are real world example of supplementary angles, collinear, and coplanar?

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Describe how making an ‘and’ compound sentence effects your solution set

Write an inequality for this sentence the quotient of a number and -5 increased by 4 is at most 8