As shown in the figure, there is a point P on the line AB, and the points m and N are the midpoint of the line PA and Pb, ab = 14
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- 1. As shown in the figure, P is the midpoint of line AB, and M is a point on Pb. Try to guess the size relationship between ap-mb and PM, and briefly explain the reason
- 2. Given the line AB = 84cm, M is the midpoint of AB, P is on MB, n is the midpoint of Pb, and Nb = 16cm. Find the length of PA Find the formula and the line segment
- 3. It is known that ab = 80cm, M is the midpoint of AB, P is on MB, n is the midpoint of Pb, and MB = 14cm Segment Pb =, am =, BM =. Segment PM =, AP =, an=
- 4. As shown in the figure, given the line AB = 80cm, M is the midpoint of AB, P is on MB, n is the midpoint of Pb, and Nb = 14cm, find the length of PA
- 5. M. N is the trisection point of AB, P is the midpoint of Nb, if AB = 12 cm, then PA=______ Cm
- 6. M. N is the trisection point of line AB, and am = one-third AB, P is the midpoint of Nb. If AB = 12 cm, what is pa
- 7. As shown in the figure, given the line AB = 80cm, M is the midpoint of AB, P is on MB, n is the midpoint of Pb, and Nb = 14cm, find the length of PA
- 8. The position of three numbers a, B and C on the number axis is shown in the figure: simplify | a + B + C | - | C + a-b| C is less than 0, a and B are more than 0 The absolute value of a is less than that of C, and the absolute value of B is greater than that of a and C
- 9. Given the position of a, B and C on the number axis, as shown in the figure, simplify | a | a + | B | B + | C | C
- 10. Given the position of a, B and C on the number axis, as shown in the figure, simplify | a | a + | B | B + | C | C
- 11. The three elements of the number axis are______ 、______ 、______ .
- 12. It is known that the corresponding numbers of two points a and B on the number axis are 6, - 8 respectively. M, N and P are the three moving points on the number axis. The speed of point m starting from point a is 2 units per second, that of point n starting from point B is three times that of point m, and that of point P starting from the origin is 1 unit per second. (1) if points m, N and P move to the right at the same time, how long does the distance from point P to point m and N equal?
- 13. As shown in the figure, on the number axis, the number represented by point a is - 2, and the number represented by point B is - √ 6 As shown in the figure, on the number axis, the number represented by point a is - 2, and the number represented by point B is - √ 6. Find the distance between two points a and B
- 14. It is known that there are two points a and B on the number axis, the distance between a and B is 2, and the distance between a and origin 0 is 3, What is the sum of the distances between all the points B satisfying the conditions and the origin o
- 15. Points a and B are on the number axis, their corresponding numbers are 2x + 1 and 3-x respectively, and the distances from points a and B to the origin are equal, so find the value of X
- 16. On the number axis, the distance from the point to the origin represented by the solution of the equation 2x-5k = 0 with X as the unknown is 5. Try to find all the values of K emergency
- 17. As shown in the figure, points a and B are on the number axis, their corresponding numbers are - 4, 2x + 23x − 5 respectively, and the distances from points a and B to the origin are equal, so find the value of X
- 18. Points a and B are on the number axis, their corresponding numbers are - 4,3x-5 / 2x + 2, and the distances from points a and B to the origin are equal. Find the value of X
- 19. There is a number axis on which there is a point a, and the number represented by it is negative 4. Due to her carelessness, Wang Hong marks the origin of the number axis in the wrong position, so that point a just falls in the position of the opposite number of negative 4?
- 20. When Li Ming is working on the problem, he draws a number axis. There is a point a on the number axis, which means - 3. Due to carelessness, he marks the origin of the number axis in the wrong position, so that point a just falls in the position of 2. Think about it: to draw the number axis correctly, how should the origin move?