Question

Find the distance of the following point from the origin :

(8 , 15)

Answer 1

P = (0 , 0)  , Q = (8 , 15)

PQ = `sqrt (("x"_2 - "x"_1)^2 + ("y"_2 - "y"_1)^2)`

`= sqrt ((8 - 0)^2 + (15 - 0)^2)`

`= sqrt (64 + 225)`

`= sqrt 289`

= 17 units