Question

Q2. A ladder 15 metres long just reaches the top of the vertical wall. If the ladder
angle of 60° with the wall, find the height of the wall.
Q3. An aeroplane when flying at a height of 3125 m from the ground passes vertically below
another plane at an instant when the angles of elevation of the two planes from the same
points on the ground are 30° and 60° respestively. Find the distance between the two planes
at that instant.
Q4. A vertical tower stands on a horizontal plane and is surmounted by a vertically flagstaff of
height h.A At a point on the plane ,the angle of elevation of the bottom of the flagstaff is a and
that of the top of the flagstaff is ß.prove that the height of the tower is
h tan a
tan ß-tan a
Q5. The angle of elevation of the top of a tower from a point on the same level as the foot
ofthe tower is B.On advancing p metres towards the foot of the tower this angle of elevation
becomes a show that the height h of the tower is given by;

h= p tana tan B
___________
tana-tanß



please give answers fast​

Answer 1

Answer:

2-ladder, wall and it's base form a right triangle

ladder is hypotenuse and wall is height \perpendicular

sin 60°=p/h

√3/2=p/15

p=(15×√3) /2meter...

similarly you can all these questions....