Question

A rectangular field is 100 meters wide and 145 meters long. A coach asks players to run from one corner to the opposite corner diagonally across the field. How much shorter is it to run across the field than around it ( nearest tenth)?

Answer 1

313.9

Explanation:

running around the field is 100+100+145+145 = 490

across the field:

(100)^2 + (145)^2 = c^2

10000+21025 = c^2

c=176.1

490 - 176.1 = 313.9