1) Let’s find out what area a given rectangle has if it is known that its length is 25 cm and its width is 4 cm.
25 * 4 = 100 cm².
2) Find out how long the side of the square is, if it is known that its area is equal to the area of a rectangle with sides of 25 cm and 4 cm, and the area of the rectangle is 100 cm².
100 = 10 * 10
Answer: the side of a square with an area of 100 cm² was 10 cm.
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