Question

do it fast I need it please​

Answer 1

Step-by-step explanation:

route AB+BC=

5m+12m= 17m

and now route AC=

√5^2+12^2

=√25+144

=√169=13m

therefore, route AC is shorter than AB+BC

and by (17m-13m) 4m

Answer 2

I think 17m

Mark me as brainlist please