Question

The ratio of height of a tower and its shadow is 1 is to 1 then the angle of elevation is

Answer 1

It is an easy question
$\tan(x) = height \div shadow \\ tan(x) = 1 \div 1 \\ the \: function \: of \: tan \: is \: 1 \: at \: 45 \:$
therefore x=45°