The angle of STV would be 140 degrees.
You should have an angle of elevation of 30 degrees.
The way you put it is confusing. I'll answer but the way you put it was confusing to me.
Answer:157 m
Step-by-step explanation:you need to multiply 3.14*25*2
False because the obtuse angle is to large to complement the right angle to diffrent angles can not be both of their compliments