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Sonbull [250]
3 years ago
7

Can a regular polygon have an interior angle of 132 degrees?

Mathematics
1 answer:
mash [69]3 years ago
3 0

Given:

The interior angle of a regular polygon is 132 degrees.

To find:

The given statement is possible or not.

Solution:

Let as assume the interior angle of a regular polygon with n vertices is 132 degrees.

Then, the exterior angles are

180^\circ-132^\circ=48^\circ

We have, n vertices. So, the number of exterior angles is n.

Sum of all exterior angles = 48n degrees

We know that, sum of all exterior angles of a regular polygon is always 360 degrees.

48n=360

n=\dfrac{360}{48}

n=7.5

Number of vertices is always a whole number. So, it cannot be a fraction value.

So, our assumption is wrong.

Therefore, a regular polygon cannot have an interior angle of 132 degrees.

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NemiM [27]
Use the equation a^2 + b^2 = c^2.

225 + 1296 = c^2
1596 = c^2
Square root both

39 = c

4 0
3 years ago
Robert needs to cut four shelves from a board that is 2.5 meters long. The second shelf is 18 cm longer than twice the length of
g100num [7]
STEP 1:
convert meters to centimeters
100 cm= 1 meter

= 100 cm/m * 2.5 m
= 250 cm


STEP 2:
x= length of first shelf
2x+18= length of second shelf
x-12= length of third shelf
x+4= length of fourth shelf

since the whole board has to be used, add lengths of all shelves and set it equal to the whole length of the board (250 cm).

x + (2x+18) + (x-12) + (x+4)= 250 cm
combine like terms
5x + 10= 250
subtract both sides by 10
5x= 240
divide both sides by 5
x= 48


STEP 3:
find length of second shelf
= 2x + 18
= 2(48) + 18
= 114 cm


CHECK:
x + (2x+18) + (x-12) + (x+4)= 250
48 + (2(48)+18) + (48-12) + (48+4)= 250
48 + (96+18) + 36 + 52= 250
48 + 114 + 36 + 52= 250
250= 250


ANSWER: Shelf two is 114 cm.

Hope this helps! :)
8 0
3 years ago
What is the value of the expression shown below?
Marysya12 [62]
The answer is the one 18
7 0
3 years ago
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Question 18<br> Calculate the mean 12, 2, 9, <br><br> 12, 10
kramer

Answer: 9

Step-by-step explanation:

first u have to add up all the numbers "12 + 2 + 9 + 12 + 10" and that's 45 then u have to divide by how many numbers there are, so there's 5 numbers. ur dividing "45/5" which is 9 so the mean is 9

mark as brainly plss

6 0
3 years ago
Read 2 more answers
​Yesterday, a movie theater sold 279 bags of popcorn. A large bag of popcorn costs ​$4. A small bag of popcorn costs ​$1. In​ al
Zanzabum
Answer: 4x+y=567, x+y=279, where x=96 and y=183. X represents the large bags and y the small bags


Explanation: We know that our two totals are 279 and 567, so they will be on their own sides of the equation.

The number of large bags (x) plus the number of small bags (y) equals 279 bags in total.

As it relates to price, the price of the large bags (4x) plus the price of the small (y) gives us $567.
8 0
2 years ago
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