Question

a circular field of diameter 98 metre is needs to be cleaned if the cost of cleaning the field is rupees 2.7 per metre square find the cost of cleaning​

Answer 1

Answer:

₹15,092

Step-by-step explanation:

Given, d = 98 meter

therefore, r = 98/2 = 49

area of the circular field is ------>

= π × r × r

$= \: \frac{22}{7} \times 49 \times 49$

$= \: 22 \times 7 \times 49$

$= \: 7546$

therefore, the cost of cleaning the whole field is 7546 × ₹ 2.7

= ₹ 15,092.

Answer 2

answer

20374.2 Rs

Step-by-step explanation:

diameter of the circular field = 98m

radius of the circular feild = 98/2 = 49m

area of the circular field = πr^2

= 22\7 × 49^2

=22/7 × 49 × 49

= 22 × 7 × 49

= 7546m^2

cost of cleaning the field per metre square = 2.7 Rs

cost of cleaning the full circular field = 2.7 × 7546

=20374.2 Rs