The interior angle and the exterior angle are supplementary.
That's why you learned about supplementary angles ... or
at least they were presented in class ... before polygons.
No, you cannot find the exterior angle before the interior because the interior angles can vary in many ways.
180 - interior angle = exterior angle
To find the interior angle of a polygon when you know the exterior angle, you can use the relationship that the interior and exterior angles are supplementary. This means they add up to 180 degrees. Therefore, you can calculate the interior angle by subtracting the exterior angle from 180 degrees: Interior Angle = 180° - Exterior Angle.
Subtract it from 180
To find the exterior angle of a triangle, first identify the two adjacent interior angles that form the exterior angle. The measure of the exterior angle is equal to the sum of these two interior angles. Alternatively, you can use the property that each exterior angle is equal to 180 degrees minus the adjacent interior angle. This relationship holds for all triangles.
No, you cannot find the exterior angle before the interior because the interior angles can vary in many ways.
180 - interior angle = exterior angle
To find the interior angle of a polygon when you know the exterior angle, you can use the relationship that the interior and exterior angles are supplementary. This means they add up to 180 degrees. Therefore, you can calculate the interior angle by subtracting the exterior angle from 180 degrees: Interior Angle = 180° - Exterior Angle.
Subtract it from 180
Exterior angle+interior angle=180 degrees and 180-exterior angle=interior angle
180-interior angle = exterior angle If it's a regular polygon then: 360/number of sides = exterior angle
To find the exterior angle of a triangle, first identify the two adjacent interior angles that form the exterior angle. The measure of the exterior angle is equal to the sum of these two interior angles. Alternatively, you can use the property that each exterior angle is equal to 180 degrees minus the adjacent interior angle. This relationship holds for all triangles.
To find the measure of an exterior angle of a triangle, you can use the property that the exterior angle is equal to the sum of the two opposite interior angles. First, identify the exterior angle you want to measure, and then add the measures of the two non-adjacent interior angles. Alternatively, if you know the measure of one interior angle, you can subtract it from 180 degrees to find the exterior angle at that vertex.
there is no fix formula for this..........you have to check that what is given to you in the question. According to the given you have to find the interior angle.
Each interior angle: 140 degrees Each exterior angle: 40 degrees
the interior angle is about 128.571428 the exterior angle is about 51.4285
40 degress because a straight line is 180 degrees and an interior angle with its exterioir angle is a line spilt in half so to find the interior/exterior angle, taek 180 and subtract the interior/ exterior angle and then you will get the the other angle, sorry this is kinda conufsing!