Anew cyclindrical swimming pool is being built at the local rec center. it has a radius of 13 feet and a height of 6 feet. tim determined that 1,014 pi ft3 of water would be needed to fill the pool, but jasmine calculated that 3,185.57 ft3 of water would be needed. explain who calculated the volume properly.

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?