A race track is in the form of a ring whose inner circumference is 440

1.	A race track is in the form of a ring whose inner circumference is 440m and the width of the track is 7m .Find the area of the track.
Answer» Answer: Step-by-step EXPLANATION: circumference of the INNER track = 4 radius = ? circumference = 2 $\pi$ r $2\frac{22}{7} r \\440/2=\frac{22}{7} r\\220\frac{7}-{22} = r \\70=r$ area of the track = ? radius = 7m + 70 m= 77 m area = $\pi r^{2}$ = 22/777M 77m = 221177 =18634 meter SQUARE

A race track is in the form of a ring whose inner circumference is 440m and the width of the track is 7m .Find the area of the track.

Answer»

Answer:

Step-by-step EXPLANATION:

circumference of the INNER track = 4

radius = ?

circumference = 2 $\pi$ r

$2*\frac{22}{7} *r \\440/2=\frac{22}{7} *r\\220*\frac{7}-{22} = r \\70=r$

area of the track = ?

radius = 7m + 70 m= 77 m

area = $\pi r^{2}$

= 22/7*77M *77m

= 22*11*77

=18634 meter SQUARE

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A race track is in the form of a ring whose inner circumference is 440m and the width of the track is 7m .Find the area of the track.

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