There is a 12 m tall hoarding pole on the top of a building. A person at some distance from the building, observes that the angle of elevation to the top of the hoarding pole from that point is the same as the angle of elevation to the bottom of the hoarding pole if he moves 4 √ 3 m closer to the building. What is the angle of elevation that the person is seeing?
Let AB be the building of height ‘h’ and BC be the hoarding pole of height 12 m. Let θ be the angle of elevation as seen by the person at a distance of ‘x’ m and ‘x + 4 √ 3‘ m. In Δ DAB, tan θ = h/x (i) In Δ EAC, tan θ = (h + 12)/ (x + 4 √ 3) (ii) From (i) and (ii) h/x = (h + 12)/ (x + 4 √ 3) ⇒ hx + 4 √ 3h = hx +12x ⇒ h/x = 12/ 4 √ 3 = √ 3 ⇒ tan θ = h/x = √ 3 = tan 60° ⇒ θ = 60°
What is the total sales of Sports shoes by Fila and Woodland together in Rs crore?
What is the difference between the profits earned by New Balance, Adidas by selling Shoes?
The cost of production of Track suits by Nike is approximately what percent more than the cost of production of Shoes by Reebok?
What is the total of the profit earned by Samsung Company on the production of Desktops and the Profit of Intex on the Production of Laptops?
What is the total of the profit earned by Sketchers on Sales of Sport shoes and the profit earned by Fila on Sales of Sneakers?
Total sales of Sports shoes by Adidas is what per cent of the total sale of Sneakers by Reebok?
If the sales team earned a profit of Rs 433 on each mock tests sold of SBI PO during September, what was his total profit earned on the mock tests of th...
Find the total profit earned by selling Track suits by New Balance and Nike.
What is the total number of mock tests sold of SBI PO November and October together?
Find the total profit earned by selling Track suits by New Balance and Nike.