Question

The circumference of given circular park is 55m .It is surrounded by a path of uniform width 3.5m .Find the area of the path

Answer 1

Answer:

Step-by-step explanation:by the given circumference find the inner radius by the formula circumference=2πr and the outer radius will be inner radius + width of path. Thus we will get inner radii as 8.75 m and then outer radius as 12.25.Now take outer radius and calculate area of circle by the formula πr^2 and do the same by take inner radius. Thus we will get 2 areas - (bigger circle-77sq.m and smaller circle 55sq m) By subtracting the area of smaller circle from area of bigger circle we get area of path(77-55= 22sqm) Thus area of path is 22 sq m