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