Tennis players are not allowed to swear when they are playing in Wimbledon

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?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

If chord ab is congruent to chord cd, then what must be true about ef and eg?