Respuesta :

Answer:

i think 80m

Step-by-step explanation:

because if it is in 30° it is 40m and 60° means double of it

The height of the tower from the given parameters is; 20√3 m

Trigonometric Ratios

I have attached a drawing showing the triangle formed by the tower and the shadow.

We can use trigonometric ratios on Triangle ABC of the attached image to get; AB = BC * tan 60°

AB = BC√3

Where AB is the height of tower

For Triangle ABD, using trigonometric ratios again, we will have;

tan 30° = AB/(BC + 40)

1/√3 = (BC√3)/(BC + 40)

Cross multiply to get;

BC + 40 = 3BC

3BC - BC = 40

2BC = 40

BC = 40/2

BC = 20 m

Thus;

Height of tower; AB = 20√3 m

Read more about trigonometric ratios at; https://brainly.com/question/11967894

Ver imagen AFOKE88