Calculate the perimeter and area of a rectangle, the width of which is 6cm, length is 1dm 2cm.

Calculate the perimeter and area of a rectangle, the width of which is 6cm, length is 1dm 2cm. Draw it in a notebook. Draw a segment dividing the rectangle into two equal parts. How many ways can this be done?

a = 6 cm;
b = 1 dm 2 cm = 12 cm.
The perimeter of a rectangle is twice the sum of its two sides:
P = (a + b) * 2 = (6 + 12) * 2 = 36 cm.
The area of the rectangle is equal to the product of the width and the height:
S = a * b = 6 * 12 = 72 cm².
A figure can be divided into two equal parts in two ways:
along the width: in this case, we get two squares with a side of 6 cm;
along the length: we get two rectangles with sides of 3 cm and 12 cm.
Answer: the perimeter of the rectangle is 36 cm, and its area is 72 cm².