Question

In Fig. 6.67, if PQ || ST, ZPQR = 110' and ZRST =
130°, find ZQRS.​

Answer 1

Step-by-step explanation:

draw a line AB from R parallel to PQ and ST

angle on the same side if parallel is 180

one angle =180-110=70

other angle =180-130=50

70+angle QRS+50=180

angle QRS=60°