Answer:
Step-by-step explanation:
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<span>(n-2)180=sum of the interior angles.
Where n=number of angles of a regular polygon.
(n-2)180=2340
divide both sides by 180 and get
n-2=13
add 2 to both sides and get
n=15 Therefore, this polygon has 15 sides.</span>
I have attached the graph so you can compare but it is graph C.
Hope that helps.
Answer:
A
Step-by-step explanation:
← divide numerator/ denominator by 4
= 
Thus A form a proportion
≠ 
Thus B is not a proportion
← divide numerator/ denominator by 4
= 
≠
Thus C is not a proportion
≠
Thus D is not a proportion
Answer:
Step-by-step explanation:
You;ll run into this formula a lot. Make sure you study it carefully.
A = 25
a = 5
d = 13
Find n
25 = 5 + 13*(n- 1)
20 = 13(n - 1)
This isn't going to work out. 20/13 does not give a whole number which it should.
