Answer:
=-9/5
Step-by-step explanation:
21 + -12x=0 I think that is the solutiuon
Third law states that for every action "force" there is an equal and opposite reaction.
Answer:
Step-by-step explanation:
We know sum of the interior angles of a quadrilateral is 
therefore we can write

so



So smallest interior angle is 
Largest interior angle 