Question

19. A circular pond is surrounded by a 2 m wide circular path. If outer circumference of circular path is 44 m,find the inner circumferenceof the circular path. Also find area of the path.​

Answer 1

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Answer 2

Answer:

Step-by-step explanation:

outer circle

circumference= 44m

radius = ?

44= 2$\pi$r

44= 2*22/7*r

44/2=22/7*r

22*7/22=r

r=7m

inner circle

radius = 7m - 2m ( as the outer circle is 2m wide)= 5m

circumference=2$\pi$r

=2*5*22/7

=10*22/7

=220/7=31.4 m

area

$\pi$$r^{2} \\=\frac{22}{7} *5*5\\=78.57m^{2}$