Interior angle+exterior angle = 180 degrees
Actually, no. The sum of the exterior angles of a triangle is 360 degrees. The sum of the interior angles of a triangle is 180 degrees.
Any exterior angle of a triangle always equals the sum of the two interior opposite angles.
The exterior angle of a triangle is equal to the sum of the two opposite interior angles. So if a triangle had points A, B and C: The exterior angle at B would equal the sum of interior angles at A and C. Similarly, the exterior angle at C would equal the sum of interior angles at A and B And the the exterior angle at A would equal the sum of interior angles at C and B.
They are called supplementary angles.
any other exterior angle of the triangle * * * * * No. The sum of the two opposite interior angles.
Interior angle+exterior angle = 180 degrees
An exterior angle of a triangle is equal in measure to the sum of the other two interior angles.
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
Actually, no. The sum of the exterior angles of a triangle is 360 degrees. The sum of the interior angles of a triangle is 180 degrees.
Any exterior angle of a triangle always equals the sum of the two interior opposite angles.
exterior angle theorem
The sum of the interior angles of any triangle is 180 degrees.
In any triangle exterior angle plus interior angles = 180 degrees
The exterior angle of a triangle is equal to the sum of the two opposite interior angles. So if a triangle had points A, B and C: The exterior angle at B would equal the sum of interior angles at A and C. Similarly, the exterior angle at C would equal the sum of interior angles at A and B And the the exterior angle at A would equal the sum of interior angles at C and B.
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.
The sum of the angles should equal 180