Question

If A= (9, 18) and B= (1 ,12) what is the length of AB

Answer 1

here is ur answer......

Answer 2

Given

If A= (9, 18) and B= (1 ,12)

Find out  the length of AB.

To proof

$Distance\ Formula = \sqrt{(x_{2} - x_{1} )^{2} + (y_{2} - y_{1})^{2}$

put the value

$= \sqrt{(1-9)^{2} + ( 12 - 18)^{2}$

we get

$= \sqrt{(-8)^{2} + (-6)^{2}}$

solving the above

$=\sqrt{64+36}$

$= \sqrt{100}$

therefore

AB = 10cm

Hence proved