In order to prove that a quadrilateral is a square specifically, we must show that it possess the properties of both a and a . triangle; trapezoid

rectangle; trapezoid

rhombus; trapezoid

rectangle; rhombus

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

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?