Answer:
B
Explanation:
the shortest distance is a straight line from house to library. This line is the hypotenuse (h) of a right triangle formed by the 3 features on the map.
Using Pythagoras' identity in the right triangle.
the square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
h² = 1.7² + 0.9² = 2.89 + 0.81 = 3.7 ( take square root of both sides )
h =
≈ 1.9 miles ( approximate shortest distance )