(((2 x 11) - 4) x 90)/11
= ( 18 x 90)/11 = 147.27o
(The total of the interior angles of an n-sided polygon is (2n - 4) right angles or 180n - 360 degrees)
Each interior angle measures 160 degrees
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it's 90 degrees
It is 90 degrees or pi/2 radians.
Interior angle + Exterior angle = 180 So Interior angle = 180 - Exterior angle Interior angle = 4*Exterior angle + 30 Substitute for Interior angle: 180 - Exterior angle = 4*Exterior angle + 30 Collect like terms: 150 = 5*Exterior angle Divide by 5: Exterior angle = 30 deg Therefore number of sides = 360/30 = 12
It will have 14 sides and each interior angle will measure 2160/14 degrees
Each interior angle measures: 152o 18' 27.69''
Each interior angle is 157.5
Each interior angle measures 144 degrees
Each interior angle is 165 degrees
120
Each interior angle measures 160 degrees
180
10000000000000
60
Use a protractor
Interior angle: 144 degrees