Question

In triangle ABC, BAC = 90 deg and AD is perpendicular to BC. If AD = 6cm and BD = 4cm, then the length of BC is

A) 10 cm B) 12 cm C) 13 cm D) 15 cm

Answer 1

Answer:

C. 13cm

length of perpendicular (I.eAD) is given by

AD2 =BC×DC

6×6=4×DC

DC=3×3=9CM

Thus,

BC= BD+DC= 4+9= 13cm

Step-by-step explanation:

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