Question

20. The diameter of a circular pond is 16.5 m. It is surrounded by a path of width 3.5 m. The area of the path is (a) 20 sq.m (b) 110 sq.m (c) 220 sq.m (d) 440 sq.m. ​

Answer 1

Answer:

20 sq.m

Step-by-step explanation:

hope it's helpful for you

Answer 2

Step-by-step explanation:

Area when R = 8.25 m

$\pi r^{2}$ = 22/7 x 8.25 x 8.25

Area of Smaller circle  ≈ 213.82465

Area when r = 10 m

$\pi r^{2}$ = 22/7 x 10 x 10

Area of Larger circle ≈ 314.15927

Area of Path = Area of Larger circle - area of smaller circle

Area of path = 314.15927 -  213.82465

Area of path  ≈ 100.33462

as the option is not available so we will accept closest value to 100.33462

which is 110 $m^{2}$

OPTION(B)