On a drive-thru Allegheny county Natalie drove due West for 9 mi then turn left and proceeded to drive due south after traveling 12 mi South what was this straight line distance between where Natalie started and where she ended her drive

1 answer

To find the straight-line distance between where Natalie started and where she ended her drive, we can use the Pythagorean theorem.

Let's calculate the distances traveled in the East-West and North-South directions:

Distance traveled in the East-West direction = 9 mi

Distance traveled in the North-South direction = 12 mi

Using these values, we can create a right triangle where the East-West distance is the base of the triangle and the North-South distance is the height.

According to the Pythagorean theorem, the square of the hypotenuse (straight-line distance) is equal to the sum of the squares of the other two sides.

So, applying the theorem:

Straight-line distance^2 = (9 mi)^2 + (12 mi)^2
= 81 mi^2 + 144 mi^2
= 225 mi^2

Taking the square root of both sides, we find:

Straight-line distance = √225 mi^2
= 15 mi

Therefore, the straight-line distance between where Natalie started and where she ended her drive is 15 miles.