I need some help lol

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Which letters from the table represent like terms? a and b b and c a and d b and d

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?