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mash [69]
4 years ago
14

Find the measure of each interior angle of a regular 18-gon?

Mathematics
1 answer:
kolbaska11 [484]4 years ago
4 0

Answer: 160^{0}

Step-by-step explanation:

The first thing is to find the sum of angles in a 18-gon using the formula:

(n-2)180

That is

(18-2)180

= 16 x 180

= 2880^{0}

Since it is a regular 18-gon , this means that each interior angles are equal , so the measure of each interior angle will be :

2880/18

= 160^{0}

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irinina [24]

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Answer:

  48°

Step-by-step explanation:

ΔACB is isosceles, so angles A and B have the same measure. The measure of angle C in that triangle is ...

  ∠C = 180° -2(69°) = 42°

Angle C in ΔCDE has the same measure. Angle D is the complement of that:

  ∠D = 90° -42° = 48°

_____

The relations we used are ...

  • the sum of angles in a triangle is 180°
  • base angles of an isosceles triangle are congruent
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5 0
3 years ago
Can someone help me with this??
Aloiza [94]
<span>–6(x – 2y) when x = –3 and y = –5
so
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answer
</span><span>A. -42</span>
4 0
3 years ago
Which whole number between 10 and 100 is twice the product of its digits?
IrinaK [193]
It is 36
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5 0
3 years ago
Help me please..........
natka813 [3]

Answer:

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Step-by-step explanation:

mode means the number that appears the most often

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6 0
3 years ago
Read 2 more answers
Solve for x: -|x|&gt;4
Feliz [49]

-|x| > 4\ \ \ \ \ |\text{change the signs}\\\\|x| < -4\ FALSE!!!!

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