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lisov135 [29]
4 years ago
12

A polygon is broken up into 4 non-overlapping triangles by drawing lines from one vertex to all other non-adjacent vertices. Wha

t is the name of the polygon?
octagon
hexagon
heptagon
quadrilateral
Mathematics
2 answers:
allochka39001 [22]4 years ago
7 0

Answer:

Heptagon!

Step-by-step explanation:

A polygon is broken up into 5 non-overlapping triangles.

Hence, the interior angle sum is = 5\180=900 degrees

The sum of the interior angles of a convex polygon is given by:

(n-2)180 degrees.

(n-2)180=900

180n-360=900

180n=1260

n=7

A seven sided figure is a Heptagon

Therefore the answer is Heptagon!

Arte-miy333 [17]4 years ago
5 0
Octagon 
hope  this helps!
-MalStar
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Answer:

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a = 47  

b = 11  

c = 38

cos (A) = (b^2+c^2-a^2)  / (2bc)

cos (A) = -0.7703349282

Angle A = 140.38

cos (B) = (a^2 + c^2 -b^2) / (2ac)

cos (B) =  0.9888017917

Angle B = 8.5826  degrees

cos (C) = (a^2 + b^2 -c^2) / 2ab

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cos (C) = 31.033 degrees

Angle W would be the smallest angle so it equals

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31.03

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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