1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tresset_1 [31]
3 years ago
10

the sum of six interior angles of a regular octagon is 800 the other two angles are equal find the size of each angle​

Mathematics
1 answer:
frosja888 [35]3 years ago
4 0

An octagon is a polygon with 8 sides and angles. The two equal angles are 140 degrees each

<h3>How to calculate the sum of an interior angle of a polygon?</h3>

An octagon is a polygon with 8 sides and angles

The formula for calculating the sum of interior angle of a regular polygon is expressed as:

S = (n-2) * 180

If the sum of six interior angles of a regular octagon is 800 the other two angles are equal, then;

800 + 2x = (8-2)*180

800 + 2x = 1080
2x = 1080 - 800
2x = 280
x = 140

The two equal angles are 140 degrees each

Learn more on interior angles here: brainly.com/question/24966296

You might be interested in
175 calories in 12 ounces
Archy [21]
<span>175 calories in 12 ounces
\frac{175}{12} =14.58</span>
8 0
3 years ago
Find the volume of each figure. Simplify your answers.
Molodets [167]

Answer:

231.556

simplifyed?: 232

8 0
3 years ago
An equilateral triangle has a side length of 6. What is the height of the triangle?
vlabodo [156]
Since the height of an equilateral triangle in terms of its side s is s√3/2, the height of the triangle is 6√3/2 = 3√3 and so the area is (1/2)(6)(3√3) = 9√3. 

<span>If we draw a horizontal line a height of h from the base of the triangle, the region is split into two regions: the lower region consisting of a trapezoid of height h and the upper region consisting of a triangle of height 3√3 - h. </span>

<span>Since the upper triangle and the triangle itself are similar triangles, the base and height are proportional. If we let x denote the base of the length of the upper triangle, we have: </span>

<span>(S. of small triangle)/(S. of big triangle) = (Ht. of small triangle)/(Ht. of big triangle) </span>
<span>==> x/6 = (3√3 - h)/(3√3) </span>
<span>==> x = (6√3 - 2h)/√3 </span>

<span>Thus, the area of the upper triangle is: </span>

<span>A = (1/2)[(6√3 - 2h)/√3](3√3 - h) = [(6√3 - 2h)(3√3 - h)]/(2√3). </span>
<span>(Made a dumb mistake about the height here for some reason) </span>

<span>Since we require that the area of this triangle is to be half of the total area (9√3/2), we need to solve: </span>

<span>[(6√3 - 2h)(3√3 - h)]/(2√3) = 9√3/2 </span>
<span>==> (6√3 - 2h)(3√3 - h) = 27 </span>
<span>==> 54 - 6h√3 - 6h√3 + 2h^2 = 27 </span>
<span>==> 2h^2 - 12h√3 + 27 = 0. </span>

<span>Solving with the Quadratic Formula gives: </span>

<span>h = (6√3 + 3√6)/2 ≈ 8.87 units and h = (6√3 - 3√6)/2 ≈ 1.52 units. </span>

<span>Since h = (6√3 + 3√6)/2 would place the line outside of the triangle, we pick h = (6√3 - 3√6)/2. </span>

<span>Therefore, the line should be ==> (6√3 - 3√6)/2 units from the base. </span>

<span>I hope this helps! ^^ Brainliest Please?</span><span>
</span>
5 0
3 years ago
Read 2 more answers
The solution of (10 x/6)(10 x/8)=10 to the power of 10​
PolarNik [594]

Answer:

80,60

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve the variable<br>v + 5 &gt; 9 ​
Aloiza [94]

Answer:

v > 4 is simplified expression.

Step-by-step explanation:

Given that:

v + 5 > 9 ​

This expression says that when 5 is added to a variable v it will be greater than 9 So we will simplify it to get the value for variable v:

Subtracting 5 from both sides:

v + 5 - 5 > 9 ​- 5

v > 4

This is the simplified expression for given question.

i hope it will help you!

5 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify the expression -4-6(7-3)
    7·2 answers
  • Can you represent the data with an equation? If so write the equation.
    5·1 answer
  • In Applied Life Data Analysis (Wiley, 1982), Wayne Nelson presents the breakdown time of an insulating fluid between electrodes
    7·1 answer
  • PLEASE HELP ME!!.. 16 points!!.... change to scientific notation
    12·2 answers
  • Estimate 20+(-3.05)+(-9.8)
    5·2 answers
  • Find the angle between the diagonal of a cube of side length 15 and the diagonal of one of its faces, so that the two diagonals
    11·1 answer
  • Orlando bought a new couch for 1728 using electronic store Fiancé plan he will pay $96
    12·1 answer
  • What is the vertex of the function (X) = -x + 71 - 4?
    10·1 answer
  • Please help me !!! i will mark brain-list for the correct answer !!!
    9·1 answer
  • Which value of x makes the equation 2/3x-3=11 true?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!