In a ΔABC, ∠BAC = 90° and AD is perpendicular to BC where D is a point on BC. If BD = 4 cm and CD = 5 cm, then the length of AD is equal to:

In a ΔABC, ∠BAC = 90° and AD is perpendicular to BC where D is a

1.	In a ΔABC, ∠BAC = 90° and AD is perpendicular to BC where D is a point on BC. If BD = 4 cm and CD = 5 cm, then the length of AD is equal to:
A.	5√2 cm
B.	2√5 cm
C.	6 cm
D.	4.5 cm
Answer» C. 6 cm

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In a ΔABC, ∠BAC = 90° and AD is perpendicular to BC where D is a point on BC. If BD = 4 cm and CD = 5 cm, then the length of AD is equal to:

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