Question

A rectangular park has corners at points (1, 1), (7, 1), (7, 5), and (1, 5). What is the shortest distance to walk from corner (1, 1) to the opposite corner (7, 5)? Round your answer to the nearest tenth.
A. 6.0 units
B. 7.2 units
C. 10.0
D. 4.0 units

Answer 1

Distance = length of the diagonal: sqrt((7−1)^2 + (5−1)^2) = sqrt(36 + 16) = sqrt(52) = 2√13 ≈ 7.211. Rounded to the nearest tenth: 7.2 units. Answer: B.