Question

ABC is isosceles. PQR is an equilateral triangle embedded inside ABC. R is the midpoint of BC. Show that PQ||BC. ​

Answer 1

Step-by-step explanation:

as PQR is an equilateral triangle so all sides are equal so PR=RQ=QP and we know that in equlaitral triangle all angles are 60 degree and PB=QC as rhey both lie on midpoint. now SAS congruency we kbow BPR=QRC=PQR= equlaitral triangle so they are parralel