Practicing Success
Practicing Success
CUET Preparation Today
In ΔABC, ∠A is a right angle. The lengths of AC and BC are 9 cm and 15 cm respectively. Point D is on AB such that BD = 6 cm, what is the length of CD? |
9\(\sqrt {7}\) 9\(\sqrt {13}\) 3\(\sqrt {17}\) 3\(\sqrt {13}\) |
3\(\sqrt {13}\) |
CD2 = AD2 + AC2 CD = \(\sqrt {36 + 81}\) = \(\sqrt {117}\) =3\(\sqrt {13}\) |
