Question

Help me please need help​

Answer 1

Explanation:

Trignomentary - real life problem.

We can find the height of the tower without measuring it. WE can find the height of the tower when we know,

1. A point which at a distance 'x' from the foot of the tower.

2. The angle of elevation is known

Eg: A tower stands vertically on the ground. From a point on the ground which is 15 m away from the foot of the tower, the angle of elevation of the top of the tower is 60°. Find the height of the tower.

AB - tower

We know the adjacent side of 60° and we have to fing the opposite side of 60°. So, we have to use

`\sf \ Tan \ 60^\circ=(Opposite \ side \ of \ 60^\circ)/(Adjacent \ side \ of \ 60^\circ)`

`1.732 = (AB)/(BC)\\\\1.732=(AB)/(15)\\\\1.732*15=AB`

AB = 25.98 m

Height of the tower ≈ 26 m