If the area of each triangle is 14.5 square inches, then what is the area of the regular decagon? show work if can.

Question

anonymous · Answer

there are 8 triangles in a decagon so if u multiply 14.5*8=116 ?

anonymous · Answer

thank you!! (:

anonymous · Answer

my pleasure!

directrix · Answer

@mr_preet  >regular decagon
@deena123

There are ten sides for a decagon.

No diagram was given but I think your answer will be 10 times 14.5 =  145 square units 

and not > 14.5*8=116 as stated above.

anonymous · Answer

but the number of triangles in a decagon are 8

anonymous · Answer

and also no diagram is need it is a formula for calculating the triangles like for n sided polygon there are (n-2) triangles!!

anonymous · Answer

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