A flagstaff stands in the centre of a rectangular field whose diagonal is 120 m. It subtends angles of `15^@` and `45^@` at the midpoints of the sides of the field. The height of the flagstaff is

One side of a rectangular field is 9 m and one of its diagonal is 20 m. Find the area of the field.

One side of a rectangular field is 15m and one of its diagonals is 17m. Find the area of the field.

The length of a rectangular field is 12 m and length of its diagonal is 15 m . The area of the field is

An electric pole stands at the vertex A of the equilateral triangular field and subtends an angle 60^(@) at either of the remaining vertices. If the altitude of the field is 50 meters, the height of the pole is

An electric pole stands at the vertex A of the equilateral triangular field and subtends an angle 60^(@) at either of the remaining vertices. If the altitude of the field is 50 meters, the height of the pole is

A tower of height 5m and a flagstaff on top of the tower subtend equal angles at a point on the ground, distance 13m from the base of the tower. The height of the flagstaff is

A flagstaff on the top of tower 80 m high, subtends an angle tan^(-1)(1/9) at point on the ground 100 m from the tower. The height of flagstaff is