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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

Verified by Experts

The correct Answer is:
C
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BHARDWAJ ACADEMY-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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  3. The inner circumference of a circular race track 7 m wide is 440 m. Fi...

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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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  8. A room 8 m long, 6 m broad and 3 m high has two windows of (3)/(2)mxx1...

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  16. A hemispherical roof is on a circular room. Inner diameter of the roof...

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  20. One cubic metre piece of copper is melted and recast into a square cro...

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