The length of the rectangle is 3 cm. 6 mm., The width is 2 cm. 4 mm. Calculate the perimeter of the rectangle.

The length of the rectangle is 3 cm. 6 mm., The width is 2 cm. 4 mm. Calculate the perimeter of the rectangle. Express the result in centimeters.

A rectangle is a rectangle with equal opposite sides and right angles.
The perimeter is the sum of all sides. For such a figure, it is determined by the formula:
P = 2a + 2b. Let’s find this value for a rectangle whose length is 3 cm 6 mm and width = 2 cm 4 mm:
P = 2 * 3 cm 6 mm + 2 * 2 cm 4 mm = 6 cm 12 mm + 4 cm 8 mm = 10 cm 20 mm. Since 1 cm = 10 mm, therefore P = 12 cm.