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Биссектрисой угла называется луч, который делит его на две равные части.

\(\angle{ABD} = \angle{CBD} \) .

\( \angle{ABC} =\angle{ABD} + \angle{CBD} \) .

Найди угол.

\(\angle{ABD} = 45 \degree\) , \( \angle{ABC} = \)

• \( 45\degree\)
• \(90\degree\)
• \(180\degree\)

\(\angle{ABD} = 26 \degree\) , \( \angle{ABC} = \)

• \(52\degree\)
• \(13\degree\)
• \( 26\degree\)

\(\angle{ABD} = 36 \degree\) , \( \angle{ABC} = \)

• \( 36\degree\)
• \(18\degree\)
• \(72\degree\)

\(\angle{ABС} = 88 \degree\) , \( \angle{ABD} = \)

• \( 42\degree\)
• \(44\degree\)
• \(22\degree\)

\(\angle{ABС} = 64 \degree\) , \( \angle{ABD} = \)

• \(32\degree\)
• \(16\degree\)
• \( 64\degree\)

\(\angle{ABС} = 58 \degree\) , \( \angle{ABD} = \)

• \( 58\degree\)
• \(19\degree\)
• \(29\degree\)