Question

Determine the length across the river, x to the nearest hundred ​

Answer 1

Answer:

$x=20.67\ ft$

Step-by-step explanation:

we know that

The Midpoint Theorem says that the line segment joining the midpoints of any two sides of a triangle is parallel to the third side and equal to half of the third side

so

in this problem

Applying the midpoint theorem

$x=\frac{124}{3}:2=\frac{124}{6}=\frac{62}{3}=20.67\ ft$