Question

solve this problem guys ☺️
answer:==rs24000

Answer 1

Answer:

24000

Step-by-step explanation:

From figure:

Let ABCD be the trapezium and AB || DC.

∠A = 90°

Let AMCD be the rectangle.

∴ MB = AB - BM

        = AB - DC

        = 90 - 30

        = 60 m.

Now,

In ΔCMB,

BC² = CM² + MB²

100² = CM² + 60²

10000 = CM² + 3600

6400 = CM²

CM = 80 m.

∴ Area of trapezium ABCD:

= 1/2 * (Sum of parallel sides) * height

= 1/2 * (90 + 30) * 80

= 4800 m².

Cost of ploughing the field per m² = 5

∴ The total cost of ploughing the field = 4800 * 5 = 24000.

Therefore, total cost of ploughing the field = 24000.

Hope it helps!