General Polygons

Khom drew a triangle has side lengths of 5, 7 and 10. What is the perimeter of this triangle?

What is the perimeter of a square with side length 3?

What is the perimeter (in inches) of a rectangle which measures 8 inches by 15 inches?

A regular hexagon has a side of length 7. What is its perimeter?

Scalene triangle \(ABC\) has side lengths \(AB = 10\), \(BC = 14\) and \(CA = 16\). What is the perimeter of \(ABC\)?