Answer:
I might be able to help as long as there's no algebra involved
You should have an angle of elevation of 30 degrees.
LCM=product of highest occurring primes in the numbers prime factorization.
GCF=product of shared primes in the numbers prime factorization.
16=2*2*2*2
Since the GCF is 8 N and 16 share only 2*2*2
Since the LCM is 48 and 16 has 2*2*2*2 the other number has a factor of 3
So the other number is 2*2*2*3=24
N=24
A= 20 cause 5-2=3 and if the top is 23 it has to be 20