Class name, student number score

First, fill in the blanks. (3 points for each space, *** 18 points. )

1, a square with a side length of 6 meters, its area is () square decimeter.

2. Make a big rectangle with two squares with a side length of 8 cm. The perimeter of this rectangle is () and the area is ().

3. The figure on the right is a graph composed of several small squares with the side length of 1 cm. Its area is () square centimeters and its circumference is () centimeters.

A rectangular orchard covers an area of 4 hectares and is 400 meters long. The circumference of this orchard is () meters.

Second, multiple choice questions. (3 points for each question, *** 12 points. )

1, a square with a side length of 4 decimeters, compare its perimeter and area. ( )。

A has a large area, B perimeter, C perimeter and area are equal, and D is incomparable.

2. Make a rectangle with two squares of the same size. The sum of the perimeters of two squares is ().

A is equal to the circumference of a rectangle, and b is longer than the circumference of a rectangle.

C is more uncertain than the length d of a rectangle.

3. As shown in the figure, the square is divided into two parts, A and B. The following statement is true ().

The area of A is larger than that of B, and the areas of B and A are equal.

The circumference of C B is larger than that of a, and the circumference of D A B is equal.

4. The perimeter of a square woodland is 1200m, and the area of this woodland is ().

A 300 square meters B 900 square meters C 9 hectares D 4 hectares

Third, solve the problem. (Each question 10, ***70. )

1. There is a square flower bed with a side length of 40 meters in the center of the citizen square, and an iron flower fence is installed around it. How long is this iron flower fence? How many square meters is this flower bed?

2. There is an experimental field near the wall of the original seed field, with a length of 30m and a width of12m. If the wall is taken as one side (as shown in the picture), how long is the fence around this experimental field?

3. Buildings

Large fountain

A rectangular hotel has been built on the bank of South Lake (pictured). The circumference of this rectangle is 260 meters and the length is 80 meters. It is known that the foundation of a hotel building is square, and the rest is used as a fountain. What is the area of the fountain?

4. In a room 9 meters long and 6 meters wide, lay 3 meters long floor tiles. A * * *, how many such tiles do you need?

5. There is a rectangular piece of paper with a length of 12 cm and a width of 8 cm. Cut the largest square from this paper. How many square centimeters is the area of square cutting? How many square centimeters is the remaining area of this paper?

6. A sprinkler travels 60 meters per minute, with a sprinkler width of 10 meter, and the sprinkler travels for 5 minutes. What is the area to be sprinkled?

7. The school playground is 70 meters long and 40 meters wide. If each student occupies 2 square meters when doing exercises, how many students can stand in this playground?

I wonder if this is what you want.