Answer:
x-3=6
Step-by-step explanation:
The answer to the solution is x=43+√249/2
I hope this helps.
Assuming BOD and AOC are straight lines.
Area of the rectangle = 4 x ΔAOD
Area of the rectangle = 4 x 10
Area of the rectangle = 40 unit²
Area of ΔABC = 1/2 x 40
Area of ΔABC = 20 unit²