its 180(16-2)
which is 180(14)
this ends up as 2520 degrees
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The sum of the interior angles of a 30-gon is (30-2)*180 = 5040 degrees. So each interior angle of a 30-gon is 5040/30 = 168 degrees.
To find the interior angle sum of a polygon, you can use the formula (n-2) * 180 degrees, where n is the number of sides. For a 60-gon, the formula would be (60-2) * 180 = 58 * 180 = 10440 degrees. This means that the interior angle sum of a 60-gon is 10440 degrees.
The sum of the interior angles of a 15-gon is (15-2)x180 degree which is 13x180 degrees or 2340 degrees.
It's often easier to calculate the external angle and subtract this result from 180 to obtain the interior angle. External angle of a 35-gon = 360/35 = 10.2857° Interior angle of a 35-gon = 180 - 10.2857 = 169.7143° The formal way is to use the formula that the Sum of the interior angles = 2n - 4 right angles.....where n is the number of sides. Sum of interior angles = [(2 x 35) - 4] x 90 = 66 x 90 = 5940 Then each interior angle = 5940 / 35 = 169.7143°
Sum of interior angles =(no. of sides - 2)180 =(55-2)180 =9540 degrees