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kondaur [170]
3 years ago
15

Find the area of the regular polygon. Give the answer to the nearest tenth.

Mathematics
2 answers:
Molodets [167]3 years ago
8 0
A regular dodecagon is a polygon with 12 equal sides.
Length of each side = 108/12 = 9 cm.

Length of the apothem = (9/2)/tan 15 = 9/2tan 15 = 16.79 cm

Area of each triangle = 9/2(16.79) = 75.57 cm^2

Therefore, area of the dodecagon = 12(75.57) = 906.9 cm^2
solniwko [45]3 years ago
7 0
<span>Each side is 9 cm long 


a 12 sided regular polygon is composed of 24 right triangles with one side

half the length of a side = 4.5 cm 

the other side is 4.5 / tan (360/24) = 4.5 / tan(15) 


A = 24 (1/2) 4.5^2 / tan(15) = </span><span>906.9 cm^2 


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
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<span>Josiah ran 4/5 miles. We need to find the tenths that is present to the given number which is 4/5.
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