180 - interior angle = exterior angle
a circle = 360 degrees , so 360 - straight angle = exterior angle
measure of exterior angle of triangle is equal to sum of interior angles. for eg. In triangle ABC, angle C is exterior angle angle A and angle B are interior angles so, C=A+B
Each interior angle of a decagon is 144 degrees.An exterior angle is 180 - measure of interior angle.There exterior angle of decagon is 180-144which is equal to-36
No.Take a look at this picture...http://www.onemathematicalcat.org/Math/Geometry_obj/graphics/summing_exterior_angles.pngThe exterior angle + the interior angle = 180 degrees180 - the interior angle = the exterior angle
Exterior angle+interior angle=180 degrees and 180-exterior angle=interior angle
It is: 180-interior angle = exterior angle
It is: 180-interior angle = exterior angle
the hypotenuse is the exterior angle
When any side of triangle is extended outwards then exterior angle is formed. Sum of this exterior angle and adjacent interior angle = 180o. If exterior angle = 180o(straight angle) then interior adjacent angle is 0o which is not possible. So exterior angle can't be straight angle.
180 - interior angle = exterior angle
180 minus interior angle = exterior angle
180 minus interior angle = exterior angle
It is: 180-interior angle = exterior angle
180-interior angle = exterior angle
180-interior angle = exterior angle If it's a regular polygon then: 360/number of sides = exterior angle
It is: 180-vertex angle = exterior angle