Select the correct answer.
What is a disadvantage of using a multimedia presentation?
A.
It does not allow audience interaction.
B.
It requires special hardware, such as a computer and speakers.
C.
Viewers have no control over the sequence of the presentation.
D.
It cannot reach a large au

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?