The perimeter of a square paper is 36 cm. How many small squares with an area of 1 square centimeter can fill this paper

The perimeter of a square paper is 36 cm. How many small squares with an area of 1 square centimeter can fill this paper

A square paper has a circumference of 36 cm and a side length of 6 cm
Area s = 6 ^ 6 = 36 square centimeter
The number of small squares that need 1 square meter is 36 / 1 = 36
The perimeter of a square paper is 36 cm. You need 36 small squares with an area of 1 square centimeter to fill the paper

The circumference of a piece of square paper is 20 decimeters. Cut it into the largest circle. How many decimeters is the circumference of this circle?

20/4=5(dm) 3.14*5=15.7(dm)

How many different ways to make a rectangle with 28 square floors with an area of 1 square meter? What are their perimeter

Length + width = 28 + 1 = 29 m, so perimeter is 28 × 2 = 56 M
There are 28 in length and 1 in width, 27 in length and 2 in width, 26 in length and 3 in width There are 14 spellings, 15 in length and 14 in width

There are () different ways to make a large rectangle with 18 small squares of 1 square centimeter, among which () cm is the largest in circumference
Help you and me, please!

3 38

How many different spellings are there when 18 small squares of 1 square centimeter are used to make a larger rectangle? How many centimeters is the longest perimeter? Length (CM) width (CM) circumference (CM) a: there are altogether___ There are two different spellings, the one with the longest circumference is___ Cm

According to the analysis, the area of the assembled figure remains unchanged, and the length and width of the assembled rectangle can be divided into the following situations: (1) length 18 cm, width 1 cm, perimeter: (18 + 1) × 2 = 38 (CM) (2) length 9 cm, width 2 cm, perimeter: (9 + 2) × 2 = 22 (CM) (3) length 6 cm, width 3 cm, perimeter: (6 + 3) × 2 = 18 (CM) (6 + 3) × 2 = 18 (CM) answer: there are three different types of rectangle The biggest circumference is 38cm. So the answer is: 3, 38

How many different ways do you use 24 squares of 1 square centimeter to make a big rectangle? What are their girths? Spell it and fill in the table below. Length (CM) width (CM) circumference (CM)

The area of the assembled figure remains unchanged. The length and width of the assembled rectangle can be divided into the following situations: (1) length 24 cm, width 1 cm, perimeter: (24 + 1) × 2 = 50 (CM); (2) length 12 cm, width 2 cm, perimeter: (12 + 2) × 2 = 28 (CM); (3) length 8 cm, width 3 cm, perimeter: (8 + 3) × 2 = 22 (CM); (4) length 6 cm, width 4 cm, The girth is: (6 + 4) × 2 = 20 (CM); length (CM) 24 128 6 width (CM) 12 34 girth (CM) 50 28 22 20

How many different ways to make a rectangle with 48 squares of 1 square centimeter? What's their perimeter?

1 * 48, 2 * 24, 3 * 46, 4 * 12 and 6 * 8, with girth of length and width multiplied by two

There are two squares, the sum of them is 60cm, the difference of area is 360 square cm, how much is their area? Find the formula!

I don't know what this is. Is it a side length?

A circle with a radius of 20 cm has a square on the outside and a square on the inside (as shown in the figure). The area of the square on the outside is -- square centimeter. The area of the square on the inside is -- square centimeter

Outer: 1600; inner: 800

As shown in the figure below, we know that the side length of a square is 20 cm, so we can find the area of the shadow part

20 * 20 * 3.14/2-20 * 20 = 228, the shadow area is 228 square centimeter