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Choice: a rectangle is 12 cm long and 8 cm wide. If you cut a square with 2 cm side length around it, the perimeter of the figure will be left A. Decrease 16cm B, unchanged C, increase 16cm
I think it's the same, because the cut is square, the removed side is equal to the added side
A rectangular cardboard is 12 cm long and 8 cm wide. If a square with a side length of 1 cm is cut off at four corners to make a uncovered box, what is the volume of the box?
The length of the box is 12-1-1 = 10 cm
The width of the box is 8-1-1 = 6cm
The box is one centimeter high
The volume of the box is 10 * 6 * 1 = 60 cubic centimeters
In a square with a side length of 8 cm, draw the circle with the largest area. If the largest circle is cut off, what is the area of the remaining part?
The largest circle is the inscribed circle of a square, and its radius is half of the side length of the square: 8 △ 2 = 4 (CM)
Square area s = A & # 178; = 8 × 8 = 64 (square centimeter)
The area of circle s = π R & # 178; = π × 4 & # 178; = 50.24 (square centimeter)
The remaining area s' = S-S = 64-50.24 = 13.76 (square centimeter)
On a piece of square paper with a side length of 8 cm, cut the largest circle. The diameter of the circle is, the area is, and the remaining area is
On a square paper with a side length of 8 cm, cut the largest circle. The diameter of the circle is [8 cm], the area is [50.24 CM & sup2;] and the remaining area is [13.76 CM & sup2;]
Radius = 4cm
Area = 4 * 4 * 3.14 = 50.24
Remaining area = 64-50.24 = 13.76
On a piece of square paper with a side length of 8 cm, cut out the largest circle. The diameter of the circle is
Diameter = side length = 8 cm
The diameter of this circle is 8 cm
Cut out the largest circle on a piece of square paper with a side length of 8 cm. What is the area of this circle in square cm
8/2=4 4*4*3.14=50.24
How many can you see when you cut a square cardboard with a side length of six centimeters into a circle of one centimeter
Three at most. When you cut a circle, you should cut it into a square first. Although there is a large gap, you can't make a complete circle
Cut a circle with a radius of 1cm on a 6cm square cardboard. How many circles can you cut at most?
Such as the title
Square paper side length is 6 cm, circle diameter is 2 cm, length contains 6 △ 2 = 3 circles, vertical contains 3 circles, 3 * 3 = 9 circles, cut 9 at most
Use a piece of square cardboard with a side length of 21 cm to cut into a circle with a radius of 1.5 cm. How many pieces can you cut at most?
Maximum: (21 △ 2 △ 1.5) square = 49
How many circles can you cut with a radius of 1.5cm? Think about how the circles are arranged in the square and draw a picture
Maximum: (21 △ 2 △ 1.5) square = 49
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