Question

a shadow of a tower standing on a level ground is found to be 40m longer, when the sun's altitude is 30degree than ,when it is 45degree. find the height of the tower

Answer 1

this is the ans hope u understand 
mark brainliest

Answer 2

AB is supposed to be the ht of the tower .
And by applying tan theta u can get the answer.
It maybe AB=40÷√3

hope this helps you

once u get the ht. of the tower u can find it for any degrees