# Question #04430

##### 2 Answers

#### Answer:

The viewing angle between the base and top of the castle wall from the person on the boat will be

#### Explanation:

Let the angle of elevation of the top of the cliff or base of the castle from the boat be

Again the perpendicular distance of the boat from the castle or cliff is

Height of the top of castle wall is

Height of the base of castle wall or top of the cliff is

So

And

Hence the viewing angle between the base and top of the castle wall from the person on the boat will be

#### Answer:

#### Explanation:

Viewing

the foot of the cliff:-

Vertical height between the foot of the cliff and top of wall

Viewing

the top of the wall:-

the castle wall :-