Area of Squares and Rectangles - Problems with Solutions

By Catalin David
Problem 1
A rectangle has a length of 6 inches and a width of 4 inches. The area is in2
Problem 2
The side of a square is 5 meters. The area of the square is m2
Problem 3
The area of a square is 16 in2. Its side is in.
Problem 4
The area of a rectangle is 45 cm2. If its length is 9 cm, then its width is cm
Problem 5
The perimeter of a square is 24 cm. The area of the square is cm2
Problem 6
The length of a rectangle is 12 cm and its width is 5 cm smaller. The area of the rectangle is cm2.
Problem 7
A rectangle has the length of 12 cm and the width 3 times smaller. Its area is cm2
Problem 8
The length of a rectangle is 6 cm and the width is 4 cm. If the length is greater by 2 cm, what should the width be so that the new rectangle have the same area as the first one?
Problem 9
How many squares with the side of 2 cm cover the surface of a rectangle with a length of 24 cm and a width of 8 cm?
Problem 10
A square with a side of 6 cm and a rectangle with a width of 4 cm have the same area. What's the length of the rectangle?

Problem 11
The side of a square is 5 cm. If its side is doubled, how many times is the area of the new square bigger than the area of the old square?
Answer: times.
Problem 12
On a field whose length is 25 metres and width is 12 metres a house was built the shape of a square whose side is 9 metres. What's the area of the garden?


Problem 13
What is the area of the blue zone?


Problem 14
What is the area of the red zone?


Problem 15
A park shaped like a square with a side of 30 metres has an alley with the width of 2 metres. What's the area of the green zone?


Problem 16
A TV has a length of 80 cm and a width of 50 cm. If the border is 5 cm thick, the area of the screen is


Problem 17
A rectangle with a length of 14 cm and a width of 10 cm is covered by black squares and blue squares with the same area. What is the total area of the blue squares?


Problem 18
Rectangle ABCD has a length of 8 cm and a width of 6 cm. What is the total area of the blue rectangles?


Problem 19
The square has a side of 2 cm and the rectangle has a length of 9 cm and a width of 6 cm. What is the area of the red zone?


Problem 20
A box whose every side is a rectangle has a length of 10 cm, a width of 6 cm and a height of 8 cm. What is the total area of the box?


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