Answer:
∆ ADB = ∆ ADC
Step-by-step explanation:
-4(-1.5 - 9)
-4 x -1.5 = 6
-4 x 9 = -36
Answer is -30
I’m pretty sure parallelograms are squares, rectangles and rhombuses. So you could take up the needed amount of space with a rectangles and rhombus. Sorry if this isn’t that much help.