Question

There is a path 5m wide around a circular park radius 50m. find the area of path.​

Answer 1

Answer:

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Step-by-step explanation:

Area of the circle=πr2,r=5m

A=722∗5∗5=78.57m2

∴ the area of the path=π(R+r)2

=722(50+5)2

=722∗552

=9507.14m2

Cost  of  construction=50∗9507.14=Rs.475357

Answer 2

Answer:

Area of the circle=πr²,r=⁵m

A=

$\frac{22}{7}$

∗5∗5=78.57m²

∴ the area of the path=π(R+r)²

=

$\frac{22}{7}$

${50 + 5} {}^{2}$

$\frac{22}{7}$

=∗55²

=9507.14m²

Cost  of  construction=50∗9507.14=Rs.475357