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defon
2 years ago
13

I need working using 1/2 x base x height formula

Mathematics
1 answer:
jarptica [38.1K]2 years ago
6 0

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)

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3 years ago
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the first one is

+2 +4 + 8 + 16 +32

he multiply by 2 every time he add numbers so its 65

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2 years ago
Aisha just received a paycheck from her new job she spends some of it buying music online and saves the rest in a bank account h
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Set y equal to 25 because this is the amount of money Aisha wants to save. This gives you 25 = 50-1.99x. Now we can solve for x, which is the variable. First, subtract 50 from both sides so that you can get the variable, x, by itself. After subtracting 50 from both sides, you are left with -25 = -1.99x . If it is easier for you, you can put the numbers on opposite sides so it reads -1.99x = -25 . Now divide both sides by -1.99 so that x is by itself. So -1.99x ÷-1.99 = 1x which is equal to just x and -25÷-1.99 = about 12.56, which is a decimal. (Remember that when you divide a negative number by a negative number, it becomes a positive number) Finally we have x = 12.56 (or 1x = 12.56) with 12.56 being equal to the number of songs Aisha can buy if she also wants to save money in her bank account. However, nobody can buy only .56 or part of a song. Round down to the nearest whole number, which is 12. This is how many songs she can buy and it makes sense because it is 12 entire songs, not 12 and just the chorus of a song. If you want to check, you can plug in 12 for x and she shouod have a little more than $25 in her bank account. So Aisha can buy 12 songs is she wants to save $25. I hope this helped :)
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