(0,0), (5,-5), (-5,-5), (0,-10) find the area of the polygon with the given coordinates. a) 10 square units b) 25 square units c) 40 square units d) 50 square units need if anyone can show how they did it, it would me a lot! : d

Will give brainliest asaapppppppppppp plz im in a major hurry to finish which of these pairs of objects exerts the greatest gravitational force on each other? object 1 and object 3 object 4 and object 3 object 1 and object 4 object 4 and object 2