Question

How much lace will be needed to put around a square cushion of
side 70cm? What will be the cost of the lace required if the lace
costs Rs. 10 per metre?​

Answer 1

Explanation:

The cost of the required lace is  20.8 Rs

Step-by-step explanation:

Side of cushion = 65 cm

Perimeter = 4 x  side

Perimeter = 4 x 65

                 = 260 cm

Cost of lace per meter =  8  Rs

                              = 8 x 260/100

Total cost of lace  = 8 x 2.6

                               = 20.8 Rs

Thus the cost of the required lace is  20.8 Rs

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