Que son las lineas imaginarias? ¿Que me permiten realizar?

In the late 1990s, brazil’s poor people protested about crowded cities land distribution mining permits industrial pollution

Rectangle qrst is shown. angle qrt is congruent to angle str, and angle str is complementary to angle qtr. which statement is true about angles qrt and qtr? they are congruent. they are complementary. they are supplementary. they are right angle

Where does the availability of water pose the greatest problem