Perimeter of a triangle is the sum of its longest and shortest sides.

The perimeter of a square of side 5 cm is 15 cm.

Area is the region enclosed with in the boundary of a plane-closed figure.

The area of a plane-closed figure that covers 16 squares in the square grid is 16 square cm.

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

The lengths of three sides of a triangle are 3 cm, 4 cm and 5 cm. What is the perimeter of the triangle?

The longer side of a rectangle is 5 cm in length and the shorter side is side is 3 cm in length. What is the perimeter of the rectangle?

The sum of two sides of a triangle is 10 cm and its third side is 5 cm in length. What is the perimeter of the triangle?

The perimeter of a plane-closed figure is 30 cm. The shortest side of the figure is 4 cm in length. What is the sum of all other sides of the figure?