Question

 a regular hexagonal picture has 4 cm long side . find the cost of lace needed to make  the border for this picture  if the lace costs rupees 2.50 per meter

Answer 1

the side of the hexagon is 4 cm in length 
so the total perimeter is 4X6=24cm

cost of lace needed to make the border =2.50X0.24m=Rs0.60