Question

AD is the perpendicular bisector of BC and BC = 10 cm. Find BD.

• A. 5 cm
• B. 2 cm
• C. 7 cm
• D. None of the above

Answer 1

The correct option is A 5 cm

Given : $BC=10$ cm

$\because AD$ is the perpendicular bisector of $BC$.

$⟹AD$ divides side $BC$ into two equal parts.

$⟹BD=DC=\frac{BC}{2}$

$⟹BD=\frac{10}{2}=5$ cm

Hence, $BD=5$ cm.