It would be the last option, (5, -4)
You would need to tell me which measurements are which. But this may be able to help you: https://www.wikihow.com/Calculate-the-Area-of-a-Trapezoid
Answer:
either B. x+y=97 or D. 4x+y = 180
Step-by-step explanation:
The answer is 12root3 which is 20.78 to 2dp.