Can you please show a picture of the graph? Otherwise, no one can help you. Or at least tell me what is the graph.
I think its 21,
Hope this helps
Answer:
4.5 u
Step-by-step explanation:
There are many ways to do it, the most easier is this:
Area=(b*h)/2
Area of ABD = (3*3)/2 = 4.5 u
D) 8 is correct
Please mark with crown!