Question

A rectangular field is surrounded by four semi

circular flower beds. If the length and breadth of

the field are 6 m and 4 m respectively, find the

cost of raising the flower beds at the rate of Rs.

8/- per M

2

. (π=3.14)​

Answer 1

Answer:

₹ 326.56

Step-by-step explanation:

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Answer 2

Cost of the flower beds would be ₹326.56.

Step-by-step explanation:

Length of the rectangular field = 6 meter

Breadth of the field = 4 meter

Area of semicircle  = $\frac{(\pi r^2)}{2}$

Area of flower beds a and b = $2(\frac{\pi r^2}{2})$

π = 3.14

r = 6/2 = 3 m

= $2(\frac{3.14\times3\times 3}{2} )$

= 2 × 14.13

= 28.26 meter²

Area of flower beds c and d :

r = 4/2 = 2 meter

= $2(\frac{3.14\times 2\times 2)}{2}$

= 2 × 6.28

= 12.56 meter²

Total area of four semi circular flower beds = 28.26 + 12.56

                                                                        = 40.82 meter²

Cost of raising the flower bed  = 8.00 per meter²

Cost of total flower beds = 40.82 × 8 = 326.56 Rs.

Cost of the flower beds would be ₹326.56.

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