Mensuration Practice Test 3

Question : 21 of 40

Marks: +1, -0

Find the width of a circular ring whose inner circumference is 455 cm and outer circumference is 543 cm.

Solution:

Width of the ring = (543 - 455) ×

7/{22} × 1/2

88 × 7/{22} × 1/2

= 14 cm

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