Number 3 i would say i think it is
Answer:
2.56
Step-by-step explanation:
I'm pretty sure, I'm sorry if its wrong
To solve this problem, you can split the shape into a triangle and a parallelogram.
You can do this by imagining/drawing a line from point A to point C>
Now you can work out the area of triangle ACB
1/2 x b x h
1/2 x 5 x 3
= 7.5
Now work out the area of the parallelogram ACDE
b x h
5 x 3 = 15
Add the areas together and then you have the answer
7.5 + 15 = 22.5
Recall that in a right-triangle, the hypotenuse, or longest side, is √(a²+b²).

pick your poison.
Answer:
This is not a complete question add more detail please
Step-by-step explanation: