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The inner circumference of a circular ra...

The inner circumference of a circular race track 7 m wide is 440 m. Find the radius of the outer circle.

A

57 m

B

68 m

C

77 m

D

69 m

Text Solution

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The correct Answer is:
C
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ARIHANT PUBLICATION PUNJAB-MENSURATION-Chapter Exercise
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  2. The area of an equilateral triangle is sqrt(243)/4 sq cm. Find the len...

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  4. A cylinder is of the height 8 m and has base radius 8 m. The maximum l...

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