Question

The shaded portion in the adjoining figure shows a circular path enclosed by two concentric circles. If the inner circumference of the path is 176m and the uniform width of the circular path is 3.5m.The are of the path is:

Answer 1

Answer:

Circumference of outer circle =88

2πr=88

πr=44

r=44×7/22

r=14

3.5 cm of path is created inside it

so the radius of small circle =14-3.5=10.5

Area of path = Area of big circle - Area of small circle.

=πR^2-πr^2

=π(R^2-r^2)

=π(R+r)(R-r)

=22/7×(14+10.5)(14-10.5)

=22/7×24.5×3.5

=22×24.5×.5

=269.5cm^2

Step-by-step explanation:

Answer 2

The correct answer is 654.5 m square and

The formula is given above in the format of a photo

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