Question

If angles P,Q,R,S of the quadrilateral PQRS taken in order are in the ratio 3:7:6:4, then PQRS is what?
Don't answer directly. prove it

Answer 1

P=3x, Q=7x, R=6x, S=4x
P+Q+R+S=360
3x+7x+6x+4x=360
20x=360
x=18
p=3x=54
Q=7x=126
R=6x=108
S=4x=72

Answer 2

Answer:

here is the proof...that it's a trapazium,.