Question

The diameter of a circular park is 24m . A 3m wide path runs all around inside of it. Find cost of paving the path at ruppees 25 per square meter

Answer 1

Area of inner circle is 22/7*144 equal 3168/7
Area of outer circle id 22/7*225 equal 4950/7
Area of path
4950/7 - 3168/7 equal 1782/7
Total coast willbe 44550/7 equal 6364 eprox

Answer 2

Answer:

4950

Step-by-step explanation:

Let the diameter of the

circular park ( D ) = 24 m

Radius of the park ( R ) = D/2

R = 24 /2 = 12 m

If the width of the path inside the

park ( w ) = 3m

Radius of the inside circle (r ) = R - w

r = 12 - 3 = 9 m

Area of the path ( A ) = πR² - πr²

A = π(R + r ) (R - r )

= π ( R + r ) w

= ( 22 /7 ) ( 12 + 9 ) ( 3 )

= 22 × 3 × 3

A = 198m²

Cost of the paving the per square

meter = Rs 25

Cost of paving total area of the path

=25 × 198

= Rs4950

I hope this helps you.

:)