The required length of lace = 4.17m and the cos for lace of 4.17m is ₹ 70.65.
Step 1:
Find the radius, r of the circular table.
Given that, Salma wants to put a lace on the edge of a circular table of diameter
Diameter of circle, d=1.5m
Radius of circle,

Step 2:
Find circumference of the circle.
Substitute
in formula

Take






Step 3:
Find the cost of rope.
From step 2

Given that, of the lace costs ₹ 15
From the above statement, form an equation.
Cost of 1m lace = ₹ 15
Therefore, cost of 4.17m lace
Required length of lace = 4.17m. Cost for lace of 4.17m is₹ 70.65.