TRIANGLE ABC in which angle A= 130°, angle B = 50° and AB = 4 cm.answer it pls

TRIANGLE ABC in which angle A= 130°, angle B = 50° and AB = 4 cm.ans

1.	TRIANGLE ABC in which angle A= 130°, angle B = 50° and AB = 4 cm.answer it pls
Answer» 180° is the ANSWER PLZ CHEK