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Mathematics 10 Online
OpenStudy (anonymous):

Help medal given!!!!

OpenStudy (loser66):

shoot

OpenStudy (anonymous):

OpenStudy (anonymous):

How many quadrilaterals and triangles are there n this shape?

OpenStudy (anonymous):

@hartnn

OpenStudy (anonymous):

any ideas?

OpenStudy (loser66):

that's what I want to ask you, tell me your idea, for calculating triangle first

OpenStudy (anonymous):

Looking at it I can see, 8 triangles and 8 quadrilaterals

OpenStudy (loser66):

|dw:1386798888909:dw|

OpenStudy (anonymous):

Ok...

OpenStudy (loser66):

for this part, you have 6 points and 3 of them will make up a triangle, right? so, that means you have \(\left(\begin{matrix}6\\3\end{matrix}\right)\) way to form

OpenStudy (anonymous):

so, will it have a total of 64 triangles?

OpenStudy (loser66):

I think so, and you have to do the same with other angle, ( I mean from F) and add them together to have the whole number

OpenStudy (anonymous):

so how many quads

OpenStudy (loser66):

but you have to calculate yours, I just give you idea, I don't check

OpenStudy (loser66):

the same idea, quadrilateral have 4 points , so it is 6 choose 4 for each nod

OpenStudy (anonymous):

I say about 36 quads

OpenStudy (loser66):

not know.

OpenStudy (loser66):

I told you, I don't work out

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