Question

A person hoists a flag on a tower of height 20 m. at a point on the ground, the angles of elevation of the foot and the top of the flat are 45° and 60° respectively, then find the height of the person.​

Answer 1

Answer:

I don't know the procedure step by step

Answer 2

Answer:

height of the person is 1.73m

Step-by-step

for ΔABC

tan60°=20/ x

√3x=20

x=29/√3

FOR ΔABD

tan45°=20 by x+y

1=20 by 20÷√3 y

20y=20√3

y=20√3 by 20

y=√3

y=1.73m