Useif base and percentage are given.​

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?

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle