Given: `delta`abc prove: the sum of the interior angle measures of `delta`abc is 180°.

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?

Write the pair of fractions as a pair of fractions with a common denominator

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the