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Lana71 [14]
2 years ago
8

Hriangle I find the sum of the interior angles and the and the measure m Int & = er measure of each interner ausle andre har

decagon. Ş = m Extx =
Mathematics
1 answer:
posledela2 years ago
7 0

Sum = 1440°

Each interior angle = 144°

Each exterior angle = 36°

Explanation:

6) Sum of interior angles = 180(n - 2)°

where n = number of sides

For a decagon, the number of sides = 10

The sum of interior angles = 180(10 -2)

The sum of interior angles = 180(8) = 1440°

Each interior angle = The sum of interior angles/ number of sides

Each interior angle = 1440/10 = 144°

Sum of Exterior angles of a polygon = 360°

Each exterior angle = Sum of Exterior angles of a polygon/ number of sides

Each exterior angle = 360/10

Each exterior angle = 36°

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The product of a mixed number between four and five and a fraction between zero and one is always less than four true or false
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elena-s [515]

The missing side and angles are 16.8 , 23.33 degree and 123.7 degree respectively.

<h3>What is a Triangle ?</h3>

Triangle is a polygon with three sides , three angles and three vertices.

Given is triangle ABC , with sides  a = 8, c = 11, and m∠C=33 degree

The missing angle and side is given by Cosine rule of triangle

c² = a² + b² - 2ab cosC

11² = 8² + b²  - 2* 8 * b * cos 33

57 = b² -13.42 b

b²  -13.42b -57 = 0

b = 16.8

By sine rule

a / sin A = b/sin B = c/sinC

8 / sin A = 11 / sin 33

A = 23.33 degree

Similarly

B = 123.7 degree

Therefore the missing side and angles are 16.8 , 23.33 degree and 123.7 degree respectively.

To know more about Triangle

brainly.com/question/2773823

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2 years ago
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raketka [301]

Answer:

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Step-by-step explanation:

Step one;

given

initial weight = 55 pounds

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Step two:

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