anonymous
  • anonymous
Please help. I really need help. This is soo confusing. Will fan and medal.
Pre-Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
What is your question?
anonymous
  • anonymous
Use the formula for the area of the trapezoid.
anonymous
  • anonymous
Okay?

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anonymous
  • anonymous
A=h\[\frac{ b1+b2 }{ 2 }\]
anonymous
  • anonymous
What is the measurements for your trapezoid?
anonymous
  • anonymous
a = base, b = base, and h = height
anonymous
  • anonymous
I'll be right back. Tag me when you get the measurements!
anonymous
  • anonymous
Length of the bases, and h is the height, to answer the question. How many square feet of grass are there on a trapezoid field with a height of 175ft and the bases of 125ft and 81ft
anonymous
  • anonymous
@HistoryGeek18 ^^
anonymous
  • anonymous
where A is area b1 and b2 ar the ^^length of the bases. (it's before that post.
anonymous
  • anonymous
Alrighty your overall area equals A = 18,025.
anonymous
  • anonymous
Do you have an idea of how I got that?
anonymous
  • anonymous
Not entirely. That's why I'm confused.
anonymous
  • anonymous
IS there anyway you can describe it?
anonymous
  • anonymous
okay so, a is your "top base" or the top measure of your trapezoid so the smallest measurement for the bases is what you'll plug in for a base.
anonymous
  • anonymous
as in a^1 = 81
anonymous
  • anonymous
b^2 = 125
anonymous
  • anonymous
because "b" is always the bottom of your trapezoid.
anonymous
  • anonymous
Okay.
anonymous
  • anonymous
So plug those into the equation for me.
anonymous
  • anonymous
\[\frac{ 81 }{ 125 }\] is this correct?
anonymous
  • anonymous
No.
anonymous
  • anonymous
a + b
anonymous
  • anonymous
plug in base "a" and base "b"
anonymous
  • anonymous
Then I'm confused.
anonymous
  • anonymous
so 81+125?
anonymous
  • anonymous
The equation for a trapezoid is a + b divided by 2 = h
anonymous
  • anonymous
Yes! so now our equation looks like this: 81 + 125 _________ = h 2
anonymous
  • anonymous
What do we plug in for h?
anonymous
  • anonymous
so H=103?
anonymous
  • anonymous
Where did you get 103?
anonymous
  • anonymous
Wait. I'm doing something wrong.
anonymous
  • anonymous
You're not adding quite yet!
anonymous
  • anonymous
oh okay.
anonymous
  • anonymous
Your equation right now if you plugged in h = 175
anonymous
  • anonymous
should look like this: 8 + 125 ________ = 175 2
anonymous
  • anonymous
wait. 8 or 81?
anonymous
  • anonymous
Sorry 81
anonymous
  • anonymous
81 = a
anonymous
  • anonymous
\[\frac{ 81+ 125}{ 2} =h\]
anonymous
  • anonymous
Yes! Now, plug in for h = height
anonymous
  • anonymous
no sorry 175?
anonymous
  • anonymous
h = 175
anonymous
  • anonymous
okay. oh wait. I just rechecked the equation. its 75 not 175. Does the equation still stay the same?
anonymous
  • anonymous
Yes, so now we just want to plug in 75 for h instead of 175
anonymous
  • anonymous
\[\frac{ 81+125 }{ 2}=75\]
anonymous
  • anonymous
Yes!!!! Now, solve the fraction part of your equation first!
anonymous
  • anonymous
66.5 * 75 = ?
anonymous
  • anonymous
I already divided for you just solve that for me.
anonymous
  • anonymous
oh okay. 4987.5?
anonymous
  • anonymous
Oops I'm sorry
anonymous
  • anonymous
Solve 103 * 75 = ?
anonymous
  • anonymous
7725?
anonymous
  • anonymous
Correct!
anonymous
  • anonymous
So, A (area) = 7,725
anonymous
  • anonymous
Okay. So is that it?
anonymous
  • anonymous
Yes, let me show you the whole equation so you can use it next time.
anonymous
  • anonymous
Okay thanks!
anonymous
  • anonymous
A = a + b/2 * h = 81 + 125/2 * 75 = 7725
anonymous
  • anonymous
There you are! Hope I helped you!
anonymous
  • anonymous
You really helped thanks!
anonymous
  • anonymous
Great! Tag me if you need anything else!

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