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stacey wants to find the width, de, of a river. she walks along the edge of the river 22 ft and marks point c. then she walks 100 ft further and marks point b. she turns 90° and walks until her location, point e, and point c, are co-linear. she marks point a at this location, as shown.

1. can stacey conclude that ∆abc and ∆edc are similar? why or why not?
suppose de = 35 ft. what can kayla conclude about the width of the river? explain.

By the given diagram,

The sides of the triangles ABC and EDC are,

BC = 100 feet, DC = 22 feet and DE = 35 feet(given)

  ( Right angles )

   ( Vertically opposite angles )

( By AA similarity postulate )

Thus, she correctly concluded that triangles ABC and EDC are similar.

Since, the corresponding sides of similar triangles are always in same proportion.

⇒  

⇒  

⇒  

By substituting the values,

⇒  

⇒  

Hence, she concluded that the width of the river is approximately 159.09 feet.

i need more details sorry

step-by-step explanation: