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Mathematics 20 Online
OpenStudy (anonymous):

can someone help me with some geometry questions?

OpenStudy (anonymous):

What are the questions

OpenStudy (superman499):

what is it u need help with

OpenStudy (anonymous):

what would those be?

OpenStudy (anonymous):

these are the questions

OpenStudy (superman499):

i dont knoe how to do them

OpenStudy (anonymous):

me ether

OpenStudy (samsungfanboy):

good luck getting medals guys ;)

OpenStudy (anonymous):

uae what you lerned sillys

OpenStudy (anonymous):

im only in 6th grade i haven't learned that

OpenStudy (anonymous):

:(

OpenStudy (worlddomination):

I'm in 8th grade and i don't know this at all

OpenStudy (anonymous):

i can help

OpenStudy (anonymous):

me too thats why im encoraging you to try and do it in your own

OpenStudy (anonymous):

@FSU

OpenStudy (soahelp):

The distinct between st would be 21 i got 21 by adding 6 to each number

OpenStudy (anonymous):

lets start with 17, its a known property of trapezoids that \[st=\left( \frac{ wx+zy }{ 2 } \right)\], this will give you the lenth of the midsegment

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

wait so 15+ 27 /2?

OpenStudy (worlddomination):

yep

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

what about the next one

OpenStudy (worlddomination):

go with this formula(V=πr2h 3

OpenStudy (anonymous):

so for 17 the answer is 21?

OpenStudy (anonymous):

and i can't see the formula you posted

OpenStudy (anonymous):

|dw:1427813788928:dw| we know that the radius is 2in as given by the picture. We also know that the outside the circle part is an isosceles triangle so both legs are the same length of 3, so now you know the lengths of all sides of the quadrilateral

OpenStudy (worlddomination):

oh it is volume equals TT r h/2 3

OpenStudy (anonymous):

@worlddomination there is nothing about volume in these problems

OpenStudy (worlddomination):

oh sorry i got distracted

OpenStudy (anonymous):

i don't get it

OpenStudy (worlddomination):

but the formula is right

OpenStudy (worlddomination):

what do you don't get

OpenStudy (anonymous):

@worlddomination depends what youre finding the volume of

OpenStudy (worlddomination):

it doesn't matter i am looking straight in my book and that's what i got volume or not volume it is the same

OpenStudy (anonymous):

for 19 you use the properties of an isosceles triangle to find the angle. |dw:1427814219238:dw|

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