Math, asked by Benny11, 1 year ago

the diameter of a circular park is 24 m. A 3 m wide path runs around it from inside. Find the cost of paving the path at rs25 per square meter.

Answers

Answered by mysticd
447
Hi,

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.

:)





Answered by ritanshu52
48

Step-by-step explanation:

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