Param Publication
ReginaTagebücher
- Books Name
- class 7 Mathematics Book
- Publication
- ReginaTagebücher
- Course
- CBSE Class 7
- Subject
- Mathmatics
Exterior angles of a triangle
An exterior angle of a triangle is equal to the sum of the opposite interior angles.
In the above figure, ∠ACD is the exterior angle of the Δ ABC.
So, ∠ACD = ∠CAB + ∠CBA
At each vertex of a triangle, an exterior angle of the triangle may be formed by extending one side of the triangle.
