Question

please solve this question​

Answer 1

length of lace = circumference of the

circle

=2×3.14×0.75

=4.71

cost=15×4.71

=70.65

approximately 71 Rs

Answer 2

${\huge {\mathfrak {Answer :-}}}$

◾Diameter = 1.5 m

So, Radius = 0.75 m

◾Now,

Circumference is

= 2 * $\pi$ * r

= 2 * 3.14 * 0.75 m

= 4.71 m

◾Then,

Cost of the lace

= Rs. (15 * 4.71)

= Rs. 70.65

⚫ $<b>Therefore, the length of lace required is 4.71 m and the cost of it is Rs. 70.65 </b>$.

That's it..