Question

How can we divide a 8cm long line in the ratio 4:5?

Answer 1

I don't no if you get answer please also make me understand

Answer 2

Answer:

We can divide any line with given ratio using method of construction.

Step-by-step explanation:

For this we need a Pencil, Scale, Compass

To divide a line segments,

We need to follow following steps

1. Draw a line segment PQ measuring 8cm

2. Draw a perpendicular line QR to line PQ at point Q.

3. Now, Sum of ratio is 4 + 5

i.e. 9

4. Now, measure 9 cm on the compass

5. Draw an arc from point P on line QR.

6. Let the point where arc cuts be A.

7. Now, measure 4 cm on the compass.

8. Draw an arc of 4 cm on line PA from point P and name the point as B

9. Draw a perpendicular line from line PQ to the point B and name that point as C (∠PCB = 90 degrees)

10. Here,

Point C divides line PQ in the ratio 4:5

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