Mathematics
In the given figure, OD = 2 × OB, OC = 2 × OA and CD = 2 × AB then △ AOB ~ △ COD by :
AA
SS
SAS
SSS

Related Questions
In △ABC, ∠B = 90° and BD ⊥ AC.
(i) If CD = 10 cm and BD = 8 cm; find AD.
(ii) If AC = 18 cm and AD = 6 cm; find BD.
(iii) If AC = 9 cm and AB = 7 cm; find AD.
In the right-angled triangle QPR. PM is an altitude.
Given that QR = 8 cm and MQ = 3.5 cm, calculate the value of PR.

Are the two congruent triangles always similar?
yes
no
none of these