Question

the tringular side walls of a flyover have been used gor advertisements.the sides of the walls are 122m,22m and 120m.the advertisements yield an earning of 5000 per m² per year.A company hired one of its walls for 3 months.how much rent did it pay?

Answer 1

Hello Mate!

Let's first prove that the flyover is made of right triangles.

122² = 120² + 22²

14884 = 14400 + 484

14884 = 14884

Hence the triangle is right ∆

So for area if right ∆ = ½ × base × height

= ½ × 120 × 22 m²

= 1320 m²

Now, it is hired for 3 month where cost of hiring for 12 months ( 1 year ) = Rs 5000

So, for 12 months = 5000

For 1 months = 5000/12

For 3 months = 5000/12 × 3 = Rs 1250

Now, for 1 m² for 3 months = Rs 1250

For 1320 m² it will cost = Rs 1250 × 1320

= Rs 16,50,000

Have great future ahead!