Whats the answer for this i need help!​

I cant see the pic for some reason---

Step-by-step explanation:

Let us assume the angle which the lifeguard makes at the point S be x°.

Now, we know that in a triangle,

i.e.

i.e. .

i.e. .

Hence, the distance is given by i.e. .

Further, we have that,

i.e.

i.e. ( As l=2w )

i.e.

i.e.

i.e.

So, the lifeguard can go from the path PS to MS i.e. the range of x is 1.107° to 90°