Question

Samia 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 lace Rs 15.​

Answer 1

Answer:

Circumference of circular table =2×22/7×1.5m/2

=22/7×1.5m

=22/7×15/10m

=22/7×3/2m

=11/7×3m

=33/7m

=4.71m

the cost of lace=4.71m×Rs.15

=Rs.70.65 ans.

Answer 2

Answer:

circumference =πd=1.5πm

length of lace required = circumference of circle

=1.5×3.14=4.71m

length of lace required =4.71m

one meter of lace =Rs.15

4.71m lace =?

=14.71×15=Rs.70.65

It costs 70.65Rs. to buy 4.71m of lace

Hope it will help you....