Question

Any given statement in the List I can have correct matching with one or more statement(s) given in the List II. Match the entries in the List I with entries in the List II.

Answer 1

(1) In $△ABC$
$\tan {45}^o=\frac{AB}{AC}$
$BC=10$
(2) In $△ABC$,
$\tan {60}^o=\frac{AB}{BC}=\frac{AB}{\sqrt{3}}$
$AB=\sqrt{3}\times \sqrt{3}=3$
(3) In $△ABC$
$\cos \theta =\frac{20}{40}=\frac{1}{2}=\cos {60}^o$
$\theta ={60}^o$
(4) In $△ABC$
$\tan {45}^o=\frac{AB}{BC}$
$AB=2m$
$\tan \theta =\frac{AB}{BD}=\frac{2}{10}=\frac{1}{5}$