alleryHow many internal bisectors does a single angle have?
AInfinitely many
BExactly two
CExactly three
DExactly one
Answer & Solution
Correct answer: D. Exactly one
1. An angle can be split into two equal halves in only one way.
2. That single splitting line is its bisector.
3. Other lines through the vertex give unequal parts.
_Source: Wikipedia, Bisection, section Angle bisector_
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