MCQ
In $\triangle A B C$, if $\angle A=100^{\circ}, A D$ bisects $\angle A$ and $A D \perp B C$. Then, $\angle B=$
- A$50^{\circ}$
- B$90^{\circ}$
- ✓$40^{\circ}$
- D$100^{\circ}$
✓
Answer
Correct option: C.
$40^{\circ}$
c
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