Ineed working using 1/2 x base x height formula

Triangle area, OK?
That's just $1/2$ b × h,
And we get it every day and night,
$1/2$ times the base and height. (2x)

A triangle is a three-sided shape,
That can be different, they don't look the same.
Whether it's equilateral, isosceles, or scalene,
To find the area, you just do the same thing.
First find the base, pick any side,
Usually we pick the long one though, that's all right.
The length of the base, we'll call that b,
Now we need the height, and then you see.
The height is the distance from the base
To the top of the triangle. But wait,
It has to be measured at 90 degrees,
Don't go drawing random lines all around—that's weak.
So the height might be in the middle of the shape,
or outside the shape or the side, OK?
Either way, you see the height is h.
Next up, the formula is what I might say, hey:

Triangle area, OK?
That's just $1/2$ b × h,
And we get it every day and night,
$1/2$ times the base and height. (2x)

Let's see why it's this way,
It's not just random, that's insane.
Take your triangle, make a copy please,
Then rotate that at 180 degrees.
Put them together, and what do we see?
That's a parallelogram, boy easy,
Now let's keep it going, all right?
Slice the triangle right at the height,

Put it on the other side, too hot to handle,
Look at this, we just formed a rectangle.
Yeah, that's a simple shape,
The area of that would be b times h,
So the one triangle is just half that,
I'll break down these facts and leave 'em in a cast.
Keeping digging if you need more info,
Flocabulary, making math so simple.

Triangle area, OK?
That's just $1/2$ b × h,
And we get it every day and night,
$1/2$ times the base and height. (Repeat)

the answer is d

step-by-step explanation:

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068