Question

Rachita designed a table cloth in the shape of heptagon of side 74 m. She wants to decorate it by
stitching lace on its boundary. Find the cost of lace at the rate of 10 per metre.​

Answer 1

Step-by-step explanation:

Soln. Length of the heptagonal side of the table cloth = 74 m

Perimeter of table = 74*6

= 444 m

Cost of lace per metre = Rs. 10

Cost of lace to be added at the borders of the table cloth = Perimeter of table cloth * The cost of lace per metre

= 444 * 10

= Rs. 4, 440

Hence the cost of lace at the rate of Rs. 10 per metre is Rs. 4, 440