Question

find the distance between points a and point b
a (8,1) b (4,9)​

Answer 1

Answer:

Required Answer:-

• A (8,1)
• B (4,9)

use distance formula

$\qquad\quad {:}\longmapsto\sf AB=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$\qquad\quad {:}\longmapsto\sf \sqrt {(4-8)^2+(9-1)^2}$

$\qquad\quad {:}\longmapsto\sf \sqrt{(-4)^2+(8)^2}$

$\qquad\quad {:}\longmapsto\sf \sqrt {16+64}$

$\qquad\quad {:}\longmapsto\sf \sqrt {80}$

$\qquad\quad {:}\longmapsto\sf AB=4\sqrt{5} \:or \:8.94$