Question

a circular garden is surrounded by a 7 meter wide road . circumference of the garden is 352 meter find the area of road​

Answer 1

Step-by-step explanation:

Let r be the radius from centre O to the circumference of garden and R be the radius from centre O to the the circumference of road.

It is given that 2πr=352m

=>πr=176

=>22/7r=176

=>r=176×7/22

=>r=8×7

=>r=56cm

R=56+7cm

R=63cm

Now area of road = π(R²-r²)

=>22/7(63²-56²)

=>22/7(63+56)(63-56)

=>22/7(119)(7)

=>22×17×7

=>2618m²

Hence, 2618m² is the area of road.