A circular park is surrounded by a 2.5 m wide circular path. If outer

1.	A circular park is surrounded by a 2.5 m wide circular path. If outer circumference of circular path is 66 m, then find the inner circumference of the circular path.
Answer» *CONSIDER* *outer* *path* , 2π R. =. 66 m r. =. 66 / 2π = 10.5 m *Now* *consider* *the* *inner* *path, given* *that* *path is* 2.5 m *wide* , r. = 10.5- 2.5 = 8 m *Now* the *circumference*** = 2πr = 2 π 8 = 50.25 m

A circular park is surrounded by a 2.5 m wide circular path. If outer circumference of circular path is 66 m, then find the inner circumference of the circular path.

Answer»

CONSIDER outer path ,

2π R. =. 66 m

r. =. 66 / 2π

= 10.5 m

Now consider the inner path,

given that path is 2.5 m wide ,

r. = 10.5- 2.5

= 8 m

Now the circumference

= 2πr

= 2 π 8

= 50.25 m