Question

a (-12,16) o (3,1) d = \sqrt{(-15)^{2}+(15)^{2}} d =

Explanation:

Step1: Calculate the squares

$(-15)^2=225$, $15^2 = 225$

Step2: Add the results

$225 + 225=450$

Step3: Find the square - root

$d=\sqrt{450}=\sqrt{225\times2}=15\sqrt{2}\approx 21.21$

Answer:

$15\sqrt{2}\approx21.21$