A man drove 14 mi directly east from his home, made a left turn at an intersection, and then traveled 8 mi north to his place of work. If a road was made directly from his home to his place of work, what would its distance be to the nearest tenth of a mile?

Respuesta :

The distance would have been 16.1 miles if the road was made directly.

Step-by-step explanation:

Given,

Distance traveled east = 14 miles

Distance traveled north = 8 miles

As he made a turn at intersection, therefore, the both the distances are perpendicular to each other.

The direct distance will form a right triangle;

Therefore,

Using pythagorean theorem;

a = 14

b = 8

c = Direct distance

[tex]a^2+b^2=c^2\\(14)^2+(8)^2=c^2\\196+64=c^2\\260=c^2\\c^2=260[/tex]

Taking square root on both sides

[tex]\sqrt{c^2}=\sqrt{260}\\c=16.124[/tex]

Rounding to the nearest tenth;

Direct distance = 16.1 miles

The distance would have been 16.1 miles if the road was made directly.

Keywords: Pythagorean theorem, square root

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