Take any point a on the line L, intercept AB = 16cm, then intercept AC = 40cm, and find the distance between the midpoint D of AB and the midpoint e of AC

Take any point a on the line L, intercept AB = 16cm, then intercept AC = 40cm, and find the distance between the midpoint D of AB and the midpoint e of AC

If BC is on the same side of a: ad = AB / 2 = 8, AE = AC / 2 = 20, de = AE - ad = 20 - 8 = 12 cm
For example, BC is on both sides of a: ad = AB / 2 = 8, AE = AC / 2 = 20, de = AE + ad = 20 + 8 = 28 cm

If AB = 6cm and BC = 4cm are intercepted on line L, then the distance between the midpoint of AB and BC is 0

It's equal to 5
If half of the midpoint of AB is equal to 3 and half of the midpoint of BC is equal to 2, then the distance between the midpoint is equal to 5

Cut AB = 6cm on the straight line, and then cut 10cm from point a to AB, then the distance between the midpoint of line AB and the midpoint of line AC is___

Cut AB = 6cm on the straight line, and then cut 10cm from point a to AB, then the distance between the midpoint of line AB and the midpoint of line AC is (2cm)

If AB = 6cm, and the distance between the midpoint of AB and the midpoint of AC is 2cm, then BC=______ ．

As shown in the figure: D is the midpoint of AB, e is the midpoint of AC, ∵ AB = 6cm, ∵ ad = DB = 3cm, ∵ de = 2cm, ∵ AE = 5cm, ∵ e is the midpoint of AC, ∵ AC = 10cm, ∵ BC = 10-6 = 4 (CM), so the answer is: 4cm

As shown in the figure, point D is the midpoint of line AB, and C is the midpoint of line ad. if AB = 4cm, find the length of line CD

∵ point D is the midpoint of line AB, ab = 4cm, ∵ ad = 12ab = 12 × 4 = 2cm, ∵ C is the midpoint of line ad, ∵ CD = 12ad = 12 × 2 = 1cm

As shown in the figure, point D is the midpoint of line AB, and C is the midpoint of line ad. if AB = 4cm, find the length of line CD

∵ point D is the midpoint of line AB, ab = 4cm, ∵ ad = 12ab = 12 × 4 = 2cm, ∵ C is the midpoint of line ad, ∵ CD = 12ad = 12 × 2 = 1cm

The length of the line AB is 20cm, C is the point on the line AB, AC = three fourths of AB, extend AB to D reversely, make ad equal to one fourths of a B, P is the midpoint of the line CD
Find the length of AP

Draw a line diagram AB is very easy to understand ah!
ac=3/4ab=3/4*20=15cm
ad=1/4*ab=1/4*20=5cm
dc=15+5=20 cm
P is the midpoint of the line CD
pc=20/2=10cm
That is AP = AC PC = 15-10 = 5 cm

As shown in the figure, B and C are two points on the line ad, and ab: BC: CD = 3:2:5, e and F are the midpoint of AB and CD respectively, and EF = 24. Calculate the length of the line AB, BC and CD

Let AB = 3x, BC = 2x, CD = 5x, then be = 32x, CF = 52X, then 32x + 2x + 52X = 24, x = 4, ab = 12, BC = 8, CD = 20

As shown in the figure, points B and C are on line ad, e is the midpoint of line AB, EF is the midpoint of CD, if EF = 10, BC = 3, find the length of AD
A————E————B——C——F——D

∵ e is the midpoint of AB, f is the midpoint of CD,
∴AB＝2BE,CD＝2CF,
And EF = 10, BC = 3,
∴BE＋CF＝EF－BC＝10－3＝7,
∴AB＋CD＝2BE＋2CF＝2(BE＋CF)＝2×7＝14,
∴AD＝AB＋CD＋BC＝14＋3＝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______ ．

∵ CB ⊥ CD, ∵ BD > BC, ∵ BA ⊥ BD, ∵ BD < ad, ∵ ad = 8, BC = 6, ∵ the value range of BD length of line segment is 6 < BD < 8; so the answer is: 6 < BD < 8