In Fig. if PQ || ST, ∠ PQR = 110° and
∠ RST = 130°, find ∠ QRS.

What is the relationship between all triangles that can be drawn given the same three angles

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?

Which table shows a proportional relationship between miles traveled and gas used?