Question

Take a line segment PQ of length 10cm. From PQ , cut

off PAof length 4.3cm and BQ of length 2.5cm. Measure

the length of segment AB . ​

Answer 1

Answer:

3.2cm

Step-by-step explanation:

PQ=10cm

PA=4.3cm BQ=2.5

PQ=PA+AB+BQ

10=4.3+AB+2.5

10=AB+6.8

AB=10-6.8

AB=3.2cm

Answer 2

Answer:

3.2 cm

Step-by-step explanation:

Consider a line PQ of 10cm length

Since PA is of length 4.3cm, point A is 4.3cm from point P on the line PQ.

Since BQ is of length 2.5cm, point B is 2.5cm from point Q on the line PQ.

So, PQ= PA+AB+BQ

⇒ 10 = 4.3+AB+2.5

⇒AB = 3.2cm