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geometry question please help !!!!!!! this is my last one

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Ok, so if AD is the same as CD..what should AD be?
4 ft?

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Other answers:

Correct! Now do you know what the formula for finding the are of a triangle is?
b * h?
Close! (B x H)1/2
oh yea i forgot the half
:) Its ok Ok, so what do you think the base is?
4 *4 ? or add ?
U are gonna add it..soo whats it gonna be?
Now whats the height?
8*7? put that in the formula
But don't forget the 1/2 in the formula
its 28 right ?
Yep!!! \[28 ft ^{2}\]
thank you :)
it said it was wrong ? :(
You're welcome! :)
yeah i dont know what went wrong
Oh..I see..
I know..
I hope this wasn't a quiz for a big grade right!?
Cuz, I see what went wrong..and I am really sorry!!
well i have 5 questions to answer and i have to get a perfect score in order to go on my next lesson. its okay can you help me on my next one ?
whats that?
Lol nvm ahha
Just post your next question
Is it the same way you told me>?
what is the area of this parallelogram
I think its just B x H
so 6 + 4 ? 10 and times 20 ?
Oh see how there this a small triangle in the parallelogram?
Ok. That A stands for Area. And that A is in the triangle. So its saying that the area of the triangle is 20. So we need to find the height of the triangle before trying to find the are of the paralellogram.
So..whats the base of the triangle?
its 4 ft
Good. Now do you have any idea of how to find the height of the triangle?
no i dont, how do you find it ?
Ok..well one way is that you can put the info you have in the area of a triangle formula and solve fore the would look like this.. (4 x H)1/2=20 SOLVE IT! The 4 is for the Base..the 20 is for the area..
how do you solve ?
is it 10 ?
wait its 125 !
The H is 10
oh i was right the first time then
Yeh! Now that you know what the height is, you can now find the area of the parallelogram
Its going to be the basic formula B x H
so 4* 10 ?
no..try again..
10 times 10 ?
the answer is 100 !?
The area of a triangle is (1/2) its base length times its corresponding height. If the base is 4.5 and the height 4, then the Area is (1/2)*(4.5)*4 Area = ?
the area would be 810 ?
oh nvm its 9
That is correct (9).
no its wrong :(
Then, please check the diagram. The base is marked 4.5 and the height 4. That would be 9 square miles. Check to see if the diagram is marked correctly. @andrea408
whats the area of this trapazoid ?
The area of a rectangle is the product of the length and the width. The area of a triangle is (1/2)b * h. So, ... |dw:1360024949464:dw|
Area of trapezoid is (1/2) * 6 * 14 + 13 * 14 A = ?
is it 133?
Try again --> (1/2) * 6 * 14 + 13 * 14 --------------- Do one-half of the product of 6 and 14. Add that answer to the product of 13 and 14 and post what you get.
224 ?
or 48?
224 ? --> I agree.
so the area of the trapazoid is 224 ?
That is what I got.
are you sure?
What are the options?
i dont have options . i just put in the answer and click done to see if its correct but im scared to click
If the picture is correctly drawn and labeled, I am certain that the answer is 224 square feet.
@needmathhelp7 can you help me please?
I'm so sorry, honey I wish I could, but I'm bad at this myself! Lol Good luck!! :) @andrea408 Try seeing @jim_thompson5910 @phi @JamesJ or @Luis_Rivera maybe they can help!
ok thanks
@jim_thompson5910 can you help me please?
the base is 4.5, the height is 3 so the area is just base * height = 4.5 * 3 = 13.5 square miles
In general Area of Parallelogram: A = B*H B = base H = height
so the area of ABDF is just 13.5 ?
yep 13.5 square miles
are you sure?
thank you !

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