Sign in
Please select an account to continue using cracku.in
↓ →
If the external bisector of the vertical angle $$\angle$$ A of the $$\triangle$$ ABC is parallel to the base BC, then the $$\triangle$$ ABC is a/an
AE is the bisector of the exterior $$\angle$$ DAC of the $$\triangle$$ ABC and AE || BC
Now, $$\angle$$ $$1$$ = $$\angle$$ $$2$$ (given)
Also, $$\angle$$ $$B$$ = $$\angle$$ $$1$$ (Corresponding angle)
and $$\angle$$ $$C$$ = $$\angle$$ $$2$$ (Alternate angle)
=> $$\angle$$ $$B$$ = $$\angle$$ $$C$$
=> AB = AC
So, $$\triangle$$ ABC is an isosceles triangle.
=> Ans - (B)
Was this solution helpful?
Create a FREE account and get:
Start your IIM journey with the right preparation and crack CAT 2026.
Educational materials for CAT preparation
Ask our AI anything
AI can make mistakes. Please verify important information.
AI can make mistakes. Please verify important information.
91- 6303239042
