Given the line AB = a, extend the line Ba to the point C so that AC = 1 / 2Ab, and the point D is the midpoint of the line BC

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• 1. Given that point C is the midpoint of line AB, point D is the midpoint of line BC, CD = 2.5cm, please find out the length of line AB, AC, ad and BD Use ∵, ∵. ∵ C is the midpoint of ab, ∴......................
• 2. It is known that the line segment ad = 10 cm, the line segment AC = BD = 7 cm, e and F are the midpoint of the line segments AB and CD respectively, and the length of EF is calculated
• 3. Given that point B is the midpoint of line ad, point C is the midpoint of line BD, CD = 2.5cm, please find out the length of line AB, AC, ad and BD?
• 4. As shown in the figure, it is known that the line segment ad = 6cm, the line segment AC = BD = 4cm, e and F are the midpoint of the line segments AB and CD respectively, and EF is calculated
• 5. Given that the line segments ad = 6cm, AC = 4cm, BD = 4cm, e and F are the midpoint of AB and CD respectively, how many centimeters is ef?
• 6. Given that the line segment ad = 6cm, the line segment AC = BD = 4cm, the points E and F are the midpoint of the line segments AB and CD respectively, the length of the line segment EF is calculated Please, class is coming!
• 7. As shown in the figure, point C is the midpoint of line AB, BD = 35ab, CD = 2cm, find the length of AD
• 8. 1. As shown in the figure, it is known that there are two points c and D on the line AB, and AC = BD, m and N are the midpoint of the line AC and ad respectively, if AB = ACM 1. As shown in the figure, it is known that there are two points c and D on the line AB, and AC = BD, m and N are the midpoint of the line AC and ad respectively, if AB = ACM, AC = BD = BCM, and a and B satisfy (A-10) & sup2; + L2 / b-4l = 0 l___ l___ l___ l___________ l________ l A N D M C B (1) Find the length of AB and AC (2) Find the length of line Mn Write the title number clearly
• 9. If AB = A & nbsp; cm, AC = BD = B & nbsp; cm, and a and B satisfy (a − 10) 2 + | B2 − 4 | = 0. (1) find the length of AB and AC; (2) find the length of Mn
• 10. Given that there are two points CD on the line AB, AC = 1 / 3 BC, ad = 5 / 4bc, CD = 7 cm, find the length of the line ab Ad equals 4 BD out of 5
• 11. If line segment DB = 2cm, extend BD to a so that Ba = 5cm, point C is a point on line AB, AC = 1.2cm, then the length of CD is () cm
• 12. Extend the line AB to C so that BC = AB, and then extend Ba to d so that ad = 2Ab, then BC = () AB () AC; BD = () AB = () CD
• 13. Extend the line AB to C, so that BC = 1 / 2Ab, extend Ba to D, so that ad = 1 / 3aC, if CD = 16cm, find the length of AB (figure also)
• 14. Extend the line segment AB to point C so that BC = 2Ab, and extend the line segment Ba to point d so that ad = 1 / 2Ab, then AB: AC=___ ,CD:BD=___
• 15. Extend the segment Ba to the point C, make BC = 3ba, take the midpoint D of BC, know ad = 2cm (as shown in the figure), and find the length of BC
• 16. Extend the line segment Ba to the point C, make BC = 3ba, take the midpoint D of BC, know ad = 2cm (as shown in the figure), and calculate the length of BC···
• 17. As shown in the figure, given BA ⊥ BD, CB ⊥ CD, ad = 8, BC = 6, then the value range of BD length of line segment is______ ．
• 18. As shown in the figure, given BA ⊥ BD, CB ⊥ CD, ad = 8, BC = 6, then the value range of BD length of line segment is______ ．
• 19. AB = 20cm, C and D are two points on the line AB, CD = 8cm (1). If e is the midpoint of AD and F is the midpoint of BC, find the length of EF. (Fig. 1) (Fig. 1) a --- C --- e -------- D --- f -------- B (2) If you translate CD along the ray AB to the extension line of AB, what is the length of ef?
• 20. As shown in the figure, the length of line segment AB is 20cm, C is the point on line segment AB, AC = three fourths AB, extend AB to D reversely, so that ad = one fourth AB, P is the midpoint of line segment CD, given AP = 15cm, calculate the length of line segment CD