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dexar [7]
3 years ago
12

What is the sum of the interior angles of a polygon that has 7 sides?

Mathematics
2 answers:
IgorC [24]3 years ago
6 0

Answer:

900

Step-by-step explanation:

irina [24]3 years ago
6 0

Answer:

900 °

Step-by-step explanation:

A heptagon is a 7-sided polygon with 7 interior angles that sum to 900 °. The name heptagon derives from the Greek words hepta- for seven and -gon for sides. A heptagon is also called a 7-gon or septagon ( septa- is Latin for seven).

The formula for calculating the sum of the interior angles of a regular polygon is: (n - 2) × 180°. Where n is number of sides.

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Please solve my difficult question fast​
kicyunya [14]

The 3 angles form the straight line AB. A straight line equals 180 degrees.

The 3 angles when added together need to equal 180:

2x + 65 + (x + 65) = 180

Simplify by combining like terms:

3x + 130 = 180

Subtract 130 from both sides

3x = 50

Divide both sides by 3

X = 50/3

X = 16 2/3 (16.66667 as a repeating decimal)

Now you have x if you need to solve all the angles replace x with its value and sole:

2x = 2(16 2/3) = 33 1/3

X + 65 = 16 2/3 + 65 = 81 2/3

7 0
2 years ago
Read 2 more answers
(-5)^2-2x(-9)+6<br> Please show work and step by step.
Varvara68 [4.7K]

Answer:

<h2>49</h2>

Step-by-step explanation:

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

==============================================

(-5)² - 2 × (-9) + 6          <em>first </em><em>E</em><em>xponents</em>

25 - 2 × (-9) + 6          <em>next </em><em>M</em><em>ultiplication</em>

25 + 18 + 6              <em>next </em><em>A</em><em>ddition</em>

43 + 6 = 49

5 0
3 years ago
I NEED HELP FAST! Find the measure of the missing angles.
loris [4]

Angle G = 130 degrees

Angle H = 50 degrees

Angle K = 74 degrees

Angle M = 106 degrees

<u>Angle G would be 130 degrees</u> because it's a vertical angle, and vertical angles are always alike.

<u>Angle H would be 50 degrees</u> because it's an adjacent angle, and we also know that one side of the line is always 180 degrees so we have an equation that looks like this 180 - 130 = 50 degrees

<u>Angle K would be 74 degrees</u> because it's a vertical angle.

<u>Angle M would be 106 degrees</u> because it's an adjacent angle.

7 0
2 years ago
Imaginary numbers <br> (-3-5/)(-3+5)<br> Answer choices:<br> 1. 34<br> 2. 34-30i<br> 3. -16
lisabon 2012 [21]

Answer:

the answer to the question is -16

7 0
3 years ago
I will give brainliest
Irina18 [472]

Answer: -3

Step-by-step explanation:

8 0
2 years ago
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