Question

plzzz help me with the equation form

Answer 1

(1)Triangle PQB and PBC have equal heights. Therefore Area of Triangle PQB/Area of triangle PBC = BQ/B.C.
(2)Triangle PBC and Triangle ABC have equal base. Therefore Area of triangle PBC/ Area of triangle ABC = PQ/AD
(3) Triangle ABC and Triangle ADC have equal heights. Therefore Area of triangle ABC/ Area of triangle ADC= BC/DC.
(4)Area of Triangle ADC/ Area of triangle Triangle PQC=AD×DC/PQ×QC