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4 votes
Please help thank you.

30 points.

Please help thank you. 30 points.-example-1
Please help thank you. 30 points.-example-1
Please help thank you. 30 points.-example-2
User Marzia
by
8.2k points

2 Answers

3 votes
Hey there!

1. 3240. 20 gon is called an isogon
2.150 because the formula for the interior angle or regular polynomials is
(180(n-2))/(n)
3.3x = 120
Divide both sides by 3
x = 40

User Saman Gholami
by
8.4k points
0 votes
Question 1:

The sum of all angles with a polygon with n sides is
180(n-2)

We have 20 sides.

180(20 -2) = 180 * 18
= 3240

Thus, the sum of all angles is 3240 degrees.
The second choice is your answer.

Question 2:

First, let's calculate the sum of all the angles.

180(12 - 2) = 1800

Now, divide that by the number of sides to get the measure of one angle.

1800/12 = 150

Your answer is the last choice.

Question 3:

Do the same as we did in question 2, but instead of 12 sides, there are 6 sides.
A regular hexagon has an interior angle measure of 120 degrees.
(Note: you should remember that for future reference).

Now, let's form the following equation

3x = 120

Divide both sides by 3

x = 40

The first choice is your answer.

Have an awesome day! :)

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