The 4th rectangle has an area of 18 square units.
What is the area of a rectangle?
The area of a rectangle is the total area covered by that rectangle.
The area of a rectangle = length × width.
Given, for the first rectangle:
length = (3 + 3)units = 6 units, and breadth = (1 + 1) units = 2 units.
Therefore, the area = (6 × 2) square units = 12 square units.
For the second rectangle:
length = (4 + 3)units = 7 units, and breadth = (1 + 1) units = 2 units.
Therefore, the area = (7 × 2) square units = 14 square units.
For the third rectangle:
length = (1 + 4)units = 5 units, and breadth = (1 + 2) units = 3 units.
Therefore, the area = (5 × 3) square units = 15 square units.
For the fourth rectangle:
length = (1 + 5)units = 6 units, and breadth = (2 + 1) units = 3 units.
Therefore, the area = (6 × 3) square units = 18 square units.
Hence, the 4th rectangle has an area of 18 square units.
Learn more about the area of a rectangle here: brainly.com/question/919810
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