Question

the diameter of a circular ground is 10 m .what will be the total cost if the sweeping charge of the ground are RS 30 per square metre (π = 3.4 )​

Answer 1

Question:

The diameter of a circular ground is 10 m. What will be the total cost if the sweeping charge of the ground are Rs. 30 per square metre (π = 3.14 )

To find:

★ Total cost of sweeping charge.

Answer:

Total charges of the ground is$\underline{\:\underline{\: \sf \pink{\bold{ Rs.2335} }\:} \: }.$

Given:

$\star \: Diameter \: of \: ground = 10m$

$\star \: Charge \:for \: per \: square \: metre = Rs. 30$

Step-by-step explanation:

$\star \: Diameter \: of \: ground = 10m$

$\star \: Radius \: of \: ground \underline{(r) = 5m}$

To find to total charges of the ground , also given that the ground is in Circle

$\therefore \boxed{ Total \: charges = Rs. 30 \times Area \: of \: circle}$

We know that,

$\boxed{ Area \: of \: circle = \pi {r}^{2} }$

$\hookrightarrow Total \: charges = 30 \times 3.14 \times {(5)}^{2}$

$\hookrightarrow Total \: charges = 94.2 \times 25$

$\hookrightarrow \boxed{ Total \: charges = Rs. 2335}$

$\therefore$Total charges of the ground is $\underline{\:\bold{ Rs.2335 }\:}$ .

Formula used:

$\bigstar Area \: of \: circle = \pi {r}^{2}$