Saima wants to put a lace on the edge of a circular table cover of dia

1.	Saima wants to put a lace on the edge of a circular table cover of diameter 1.5m. Find the length of the lace required and also find its cost if one meter of the lace costs Rs 15. (Take π = 3.14)
Answer» Diameter of the table cover = 1.5m Circumference of the table cover 2πr – πd = 3.14 × 1.5 (∵ d = 2r) = 4.710 mts ∴ Length of the lace required = 4.71 mt Cost of lace per meter = Rs. 15 ∴ Total cost of the lace =4.71 × 15 = Rs 70.65

Saima wants to put a lace on the edge of a circular table cover of diameter 1.5m. Find the length of the lace required and also find its cost if one meter of the lace costs Rs 15. (Take π = 3.14)

Answer»

Diameter of the table cover = 1.5m

Circumference of the table cover

2πr – πd = 3.14 × 1.5 (∵ d = 2r) = 4.710 mts

∴ Length of the lace required = 4.71 mt

Cost of lace per meter = Rs. 15

∴ Total cost of the lace =4.71 × 15

= Rs 70.65