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3 years ago

Geometry please help!

Mathematics

1 answer:

ikadub [295]3 years ago

8 0

Answer:

see explanation

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

The polygon here has 8 sides, that is n = 8, thus

sum = 180° × 6 = 1080°

Sum the given angles and equate to 1080, that is

14x + 133 + 167 + 138 + 18x + 115 + 151 + 120 = 1080

32x + 824 = 1080 ( subtract 824 from both sides )

32x = 256 ( divide both sides by 32 )

x = 8

Thus the 2 unknown angles are

14x = 14 × 8 = 112°

18x = 18 × 8 = 144°

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And

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Step-by-step explanation:

The equation has to be formed by using the given information.

Let p be the total number of pages in the novel

Then

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$\frac{p}{3}$

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Then according to the statement

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$114=\frac{p}{3}-3\\Adding\ 3\ on\ both\ sides\\114+3=\frac{p}{3}-3+3\\117=\frac{p}{3}\\Multiplying\ both\ sides\ by\ 3\\3*117 = \frac{p}{3}*3\\p=351$

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$114=\frac{p}{3}-3$

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Keywords: Linear equation, variable

Learn more about linear variable at:

#LearnwithBrainly

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