The sum of the edge lengths of a rectangle made up of three squares of the same size is 60cm, and the surface area () and volume () of a small square

The sum of the edge lengths of a rectangle made up of three squares of the same size is 60cm, and the surface area () and volume () of a small square

3×4＋4×2＝20
60 △ 20 = 3cm
3 × 3 × 6 = 54 square centimeter
3 × 3 × 3 = 27 CC

Four squares of the same size and shape are put together to form a large rectangle with the smallest surface area. The surface area will be reduced by 32 square centimeters
The body surface area is () square centimeter

32/8=4
8/4=2
2*(2*4+2*2+4*2)
=2*20
=40
40 square centimeters

Use two 8 cm long and 4 cm wide rectangles to make a square. What's the area and perimeter of the square

Area: 8 * (4 + 4) = 64cm
Perimeter: 8 * 2 + 2 * (4 + 4) = 32cm

Divide a circle into 16 parts and make it into a similar rectangle. The perimeter of the rectangle is 4cm. What is the area of the original circle?

The circumference of the approximate rectangle is the circumference of the circle + 2 * radius, so the radius of the circle is 4cm
The area of a circle is 16 π square centimeter

Divide a circle into several parts evenly and form an approximate rectangle. The perimeter of the rectangle is 8 cm longer than that of the circle. What is the area of the circle______ Square centimeter

The area of the circle is: 3.14 × (8 △ 2) 2, = 3.14 × 42, = 3.14 × 16, = 50.24 (square centimeter). Answer: the area of the circle is 50.24 square centimeter. So the answer is: 50.24

Use two pieces of 8 cm in length and 4 cm in width to make a square. What's the perimeter? Make it a rectangle

8+8+4+4=24

Use two rectangles 16 cm long and 8 cm wide to make a square. The perimeter of the square is______ Cm

So the perimeter is: 16 × 4 = 64 (CM). A: the perimeter of a square is 64 cm. So the answer is: 64

Use two 8 cm long and 4 cm wide rectangles to form a large rectangle (as shown in the figure). What is the circumference of the large rectangle?

(8 + 8 + 4) × 2 = 20 × 2 = 40 (CM) a: the perimeter of a large rectangle is 40 cm

After two squares of the same size are put together into a rectangle, the perimeter is reduced by 8 cm compared with the sum of the original two squares
How many centimeters is the circumference of a shape

（8÷2）×4=16cm

Use three squares of the same size to make a rectangle. The perimeter of the rectangle is longer than that of the original three squares

The perimeter of the original three squares: 3 * 4A = 12a
Circumference of rectangle: (3 + 3 + 1 + 1) a = 8A
Four years less than the original, 50% less