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d1i1m1o1n [39]
3 years ago
13

To the nearest degree, what is the measure of each exterior angle of a regular 11-gon?

Mathematics
2 answers:
Licemer1 [7]3 years ago
8 0
<h2>Answer:</h2>

The measure of each exterior angle of a regular 11-gon to the nearest degree is:

                                      33°

<h2>Step-by-step explanation:</h2>

<em>A regular n-gon is a polygon whose measure of all the sides and all the angles are equal i.e. it is a equilateral and equiangular polygon.</em>

We know that the measure of each exterior angle of a regular n-gon is given by:

                           \dfrac{360\degree}{n}

We have:

n=11

Hence, the measure of each exterior angle is given by:

                                      \dfrac{360}{11}\\\\\\=32.7272

Hence, to the nearest degree the measure of the exterior angle is: 33°

Alex73 [517]3 years ago
7 0
Answer: 33°

Explanation:

360 ÷ 11 = 33 (nearest degree)


The Wise Orange knows that exterior angles always sum up to 360°
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The third term of the sequence is 120. The fifth term is 76.8 The explicit rule for the geometric sequence is an=?(?)n-1
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Answer:

The explicit rule of the geometric sequence

 aₙ   = 187.5 (0.8)ⁿ⁻¹

Step-by-step explanation:

<u><em> Step(i):-</em></u>

Given that the third term of the sequence = 120

        tₙ = a rⁿ⁻¹  

       t₃  = a r³⁻¹ = ar²

        120 = ar² ..(i)

Given that the fifth term of the given geometric sequence = 76.8

        tₙ = a rⁿ⁻¹  

       t₅  = a r⁵⁻¹ = a r⁴

   76.8  = a r⁴...(ii)

<u><em>Step(ii):</em></u>-

 Dividing (ii) and (i)

         \frac{ar^{4} }{ar^{2} } = \frac{76.8}{120}

        r²   = 0.64

       r    =√ 0.64 = 0.8

Substitute r= 0.8 in equation (i)

         120 = ar²

       120 = a(0.8)²

⇒      a = \frac{120}{0.64} =187.5

<u><em>Step(iii):-</em></u>

The explicit rule of the geometric sequence

                 aₙ  = a rⁿ⁻¹

put a= 187.5  and r = 0.8

                aₙ   = 187.5 (0.8)ⁿ⁻¹

 

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3 years ago
May I know why is the answer 1/2? Any idea <br><br> Thank you!
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let's put value of t in equation.

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y = x^2 /4

now let's differentiate it with respect to x.

dy/dx = 2x/4 = x/2

differentiating again wrt to x

d^2y/dx^2 = 1/2

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