Question

The officer stepped off 20 paces from E to G. If his pace is 2 1/2 feet long. How wide was the river?

Answer 1

The wide of river is
`50\ ft`

Explanation:

In this problem we know that

Triangles DEG and DEF are congruent by ASA (Angle-Side-Angle) Congruence

therefore

EG=EF

`EG=20*(2(1)/(2))=20*(5)/(2)=50\ ft`