Let's do these three questions was the video, give it a try and then let's do it together.
All right.
Let's do it together.
Each interior angle of a polygon is one hundred and eight degree.
Find the number of sites of the polygon.
Now, each candidate angle is one zero eight degrees.
That means every indeed wrangling is equal right now.
If there are insights, there will be any angles.
Therefore, the sum of the angles is equal to one zero eight in two.
And right now we also know that in the case where there are insights, the sum of the interior angles
can be found using the formula and minus two in two 180.
But these two are equal.
That means one hundred and eight and is equal to 180 in the end minus two.
Right.
So that's one eight and minus 360.
Let's simplify this.
We get 360 is equal to seventy two in or and is equal to 360 by seventy two and that is equal to five.
So the answer to this question is five.
It's the Pentagon.
What about question number two, the sum of the angles of a quadrilateral.
That's a four sided figure.
Right.
So we know it's four minus two in the 180, which is equal to 180 in the two.
And you get the answer as 360 degrees.
That's option number C.
Now, let's do the third question.
What is the sum of all the angles of a hexagon, a hexagon is a six sided polygon, right?
OK, so how many triangles can you form, you can form one, two, three, four, four triangles right
there for the sum of the angles will be for into 180.
That's equal to the same as in minus two in two 180 where N is equal to six.
Right.
But we have seen this also before that six minus two in the 180.
So that's also four in the 180.
And you get that as 720 degrees, which is option D.