How do you want to rotate a figure with a point in the triangle,
Find a piece of paper, draw the triangle you want and cut it out
Then draw the original figure on another piece of white paper, overlap the two figures, tie the point to be rotated with a compass, and then turn the triangle you cut. Just try it a few times. You will turn later
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- 10. In the process of translation, the line segments connected by the corresponding points can only be parallel, not on the same line?
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- 14. What is the edge line of the figure (the math problem of grade three in primary school requires drawing some edge lines of the figure)
- 15. Translation does not change the shape______ .
- 16. Why doesn't translation change the size of the graph?
- 17. (1) The number of white rabbit is one sixth less than that of black rabbit. The number of white rabbit is that of black rabbit, that of black rabbit is that of white rabbit, that of black earth is more than that of white rabbit, and that of black rabbit is that of black rabbit (2) Two fifths of a glass of fruit juice has been drunk, and what is left is what is left Big brother, big sister Be more specific and explain how you do it!
- 18. Fill in the blanks of mathematics in Grade 6 of primary school Cut the cube with the edge length of 1 decimeter into several small cubes with the edge length of 1 centimeter (no waste), and arrange the small cubes into a row to form a cuboid. The surface area of the cuboid is () square centimeter Give 10 points to those who tell you their ideas
- 19. After a cylinder is cut into an approximate cuboid, the bottom area of the cuboid is equal to that of the cylinder________ The height is equal to the height of the circle_________ Because the volume of a cuboid is equal to_______________ So the volume of the cylinder is equal to_____________ The calculation formula of the volume of a cylinder expressed in letters is_______________ .
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