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Mathematics 11 Online
OpenStudy (anonymous):

Find the area of the regular polygon. Give the answer to the nearest tenth. Decagon with a side of 4 cm.

OpenStudy (anonymous):

Can you help please??

OpenStudy (anonymous):

@koymoi can you help?

OpenStudy (anonymous):

I know the answer i just dont get how to get there.

OpenStudy (anonymous):

do you know how many sides a decagon has

OpenStudy (anonymous):

10?

OpenStudy (anonymous):

yes, now how many triangles of the same shape can we get from a decagon? I will give you lil bit hint in the pic below:

OpenStudy (anonymous):

|dw:1376882655959:dw|

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