What is the perimeter of a rectangle if the area is 60, and one of the side length is 15?

If a side of a square has a length of , what is the perimeter?

The area of a rectangle is 16. Assuming the length and width are integers, which of the answers is NOT a possible perimeter?

Note: Figure NOT drawn to scale.

Refer to the figure above, which shows a square inscribed inside a large triangle. What is the difference between the perimeter of the white trapezoid and the blue triangle?

Note: Figure NOT drawn to scale.

Refer to the above diagram. Give the ratio of the perimeter of to that of .

Find the perimeter of an equilateral triangle with a length of .

Refer to the above figure. Quadrilateral is a square. Give the perimeter of Polygon in terms of .