Question

Q.14 A line segment of length 7.2 cm is divided into 5:7. Measure the first part of the line. ​

Answer 1

Answer:

total length = 7.2cm

ratio of divisions = 5:7

length of first part = 5/12 × 7.2 = 3cm

Answer 2

Answer:

A line segment of length 7.2 cm.

It's divided into 5:7

Let the ratio be x .

so 5x + 7x = 12x

12x = 7.2cm

x = 0.6cm

5x = 0.6cm × 5 = 3cm

7x = 0.6cm × 7 = 4.2cm

So the first part of the line is 3cm.