Question

19
. Around a circular garden, a 5 m wide path is
made. If the radius of the garden be 15 m. Find
the area of the path.
(a) 225 Tsqm (b)400 rsqm
(c) 175sqm(d) 200 sqm/
write Explanation please. ​

Answer 1

Width of park = 5m

Radius = 15m

If we want Area of garden with path then radius will be

15+5 = 20m

Area of garden with path = πr2

= 22/7×20×20

= 8800/7 sq.m

Area of garden = πr2

= 22/7×15×15

= 4950/7 sq.m

Area of path = Area of garden with path-Area of garden

= 8800/7 - 4950/7

= 3750/7

= 550 sq.m