Calculate the area of the rectangles. Which rectangle has an area of more than 1 sq. Dm; who has less?

A rectangle has opposite sides equal and parallel.
The area of ​​the rectangle is calculated by multiplying the length of the figure by its width.
Formula for the area of ​​a rectangle:
S = a * b;
a and b are the length and width of the rectangle.
A square has the same length as its width.
We know that 1 dm2 = 10 cm * 10 cm = 100 cm2.
Find the area of ​​the first rectangle:
S1 = 25 cm * 4 cm = 100 cm2 = 1 dm2.
The area of ​​the first rectangle is 1 dm2.
Square area:
S2 = 11 cm * 11 cm = 121 cm2 = 1.21 dm2.
The square area is more than 1 dm2.
Second rectangle area:
S3 = 8 cm * 12 cm = 96 cm2 = 0.96 dm2.
The area of ​​the second rectangle is less than 1 dm2.