1 Answer

Ahmed Kamal · Answer 1 · 2020-04-24T11:16:41+0000

Answer:

The length of AD is
$√(13)\ units$

Explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^(2)+(x2-x1)^(2)}$

we have

$A(2,4)\\B(0,1)$

substitute the values

$d=\sqrt{(1-4)^(2)+(0-2)^(2)}$

$d=\sqrt{(-3)^(2)+(-2)^(2)}$

$dAD=√(13)\ units$

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