Two remote interior angles of a triangle are 81° and 42°. What is the exterior angle opposite them?
Note
The exterior angle of a triangle equals the sum of the two remote interior angles. Therefore it is 81° + 42° = 123°.
Two remote interior angles of a triangle are 81° and 42°. What is the exterior angle opposite them?
The exterior angle of a triangle equals the sum of the two remote interior angles. Therefore it is 81° + 42° = 123°.