समान ऊंचाई के दो खंभे 150 मीटर चौड़ी सड़क के दोनों ओर खड़े हैं। खंभों के बीच सड़क पर एक बिंदु से खंभों के उन्नयन कोण x° और y° हैं, जिससे tan x° = 25 और tan y° = 35 है। प्रत्येक खंभे की ऊंचाई है:

Two persons are on diametrically opposite sides of a tower. They measure the angles of elevation of the top of the tower as 30° and 60° respectively. If the height of the tower is 100 m, what is the approximate distance between the two persons?

At a point on level ground, the tangent of the angle of elevation of the top of a tower is found to be 56. On walking 70 m towards the tower, the tangent of the angle of elevation of the top of the tower is found to be 98. What is the height of the tower?