# The length of the first rectangle is 36 cm, and the length of the second rectangle is 6 cm less.

July 29, 2021 | education

| **The length of the first rectangle is 36 cm, and the length of the second rectangle is 6 cm less. Both rectangles have the same area. Find the width of the second rectangle if it is known that the width of the first rectangle is 15cm.**

1) Let’s find out what area the first rectangle has, if it is known that its length is 36 cm, and its width is 15 cm.

36 * 15 = 540 m².

2) Let’s find out how long the second rectangle has, if it is known that it is 6 cm less than the length of the first rectangle, and the first rectangle has a length of 36 cm.

36 – 6 = 30 cm.

3) Find out what width the second rectangle has, if it is known that its area is 540 m², its length is 30 cm.

540/30 = 18 cm.

Answer: The width of the second rectangle is 18 cm.

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