A rectangle is four times the width and 120 meters in circumference. How many square meters is the area of this rectangle?

A rectangle is four times the width and 120 meters in circumference. How many square meters is the area of this rectangle?

A: the area of this rectangle is 576 square meters

How many square meters is the area of this rectangle? With the solution of the equation, each step should be written clearly

The width is x m and the length is 4x M
2(x+4x)=120
5x=60
x=12
12 * 4 = 48m
It is 12 meters wide and 48 meters long
Area: 48x12 = 576 square meters

The perimeter of a rectangular vegetable plot is 50 meters, of which the length is 1.5 times of the width. How many square meters is the area of this plot

Set the width as X meters
2*(X+1.5X)=50
5X=50
X=10
Length = 10 * 1.5 = 15m
Area = 10 * 15 = 150 square meters

The circumference of a figure made of five identical squares is 48 cm. What is the area of this figure in square centimeter?
The five small squares overlap to form a cross, one in the middle

This figure should be 5 squares in a row, so the perimeter is the side length of 5 squares, and the width is the side length of a square, so the side length of a square should be 4 cm. Then, the area is (5 × 4) × 4 = 80 square cm
If it is folded into a cross, the perimeter of the figure is 12 sides, which is equal to 4cm and covers an area of 80cm

As shown in the figure, if the perimeter of the square is 20 cm, the area of the parallelogram is 20 cm______ Square centimeter

The side length of a square is 20 △ 4 = 5 (CM), and 5 × 5 = 25 (CM). A: the area of a parallelogram is 25 square cm

Use 12 cm long and 9 cm wide rectangular paper to make a square, at least () pieces

The least common multiple of 12 and 9 is 36, and the side length of the square is 36 cm
36 & # 178; △ 12 △ 9 = 12 sheets

With a number of 10 cm long, 6 cm wide rectangular paper put together into a square, put together the minimum side length of the square is how many centimeters

If the side length is the least common multiple of 10 and 6
Find the common multiple of them, 30, 60, 90. Go to the smallest 30

How many pieces of paper do you need at least?
What is the minimum area of this square in square centimeter?

12. The least common multiple of 10 is 60
60/12=5
60/10=6
5*6=30
At least 30 sheets of paper are required

A rectangular piece of paper, 20 cm in length and 16 cm in width, how many pieces of paper do you need to make a square?

First, determine that the side length of the square is the common multiple of 20 and 16, the minimum side length is 80cm, 80 △ 20 = 480 △ 16 = 54x16 = 20
Therefore, at least 20 20 cm long, 16 cm wide rectangular paper can be put together into a square

A piece of rectangular paper, 18 cm long and 15 cm wide, can be used to make a square. At least how many pieces of such rectangular paper are needed

30