A vertical lamp-post of height 9 metres stands at the corner of a rectangular field. The angle of elevation of its top from the farthest corner is `30^@`, while from another corner it is `45^@`. The area of the field is

ABCD is a rectangular field . A vertical lamp post of height 12m stands at the corner A . If the angle of elevation of its top from B is 60^(@) and from C is 45^(@) , then the area of the field is : a) 48 sqrt 2 sq. m b) 48sqrt3 sq m c)48 sq. m d) 12 sqrt2 sq

ABCD is a reactangular field .A vertical lamp post of height 12 m stands at the corner A. If the anngle of elevation of its top from B is 60^@ and from C is 45^@ , then the area of the field is

ABCD is a rectangular field. A vertical lamp post of height 12 m stands at the corner A. If the angle of elevation of its top from B is 60^(@) and from C is 45^(@) , then the area of the field is

ABCD is a rectangular field. A vertical lamp post of height 12 m stands at the corner A. If the angle of elevation of its top from B is 60^(@) and from C is 45^(@) , then the area of the field is

A vertical tower standing at the corner of a rectangular field subtends angles of 60° and 45° at the two nearer corners. If theta is the angle that the tower subtends at the farthest corner, then what is cot theta equal to?

If the angle of elevation of the top of a tower at a distance 500 metres from its foot is 30^@ then the height of the tower is