Math, asked by yancypatel1809, 5 months ago

A washer is in the form of a ring whose area is 22 cm2

. if the radius of the outer circle of

this ring is 3 cm, find the width of the ring.​

Answers

Answered by svsanthosh2008
1

Answer:

5cm

this is the answer

Answered by AbdulRubSir
8

Answer:

1.414cm

Step-by-step explanation:

Given,

  • Area of the ring :- 22cm²
  • Radius of the outer circle :- 3cm

To find,

  • Width of the ring or radius of the inner circle

Formula :-

  • a = π(R²-r²)

where R = radius of outer circle,r = radius of inner circle

Substitute the values from the formula :-

  • a = π(R²-r²)
  • 22 = 22/7(3²-r²)
  • (22 on both sides are cancelled)
  • 7 = 3²-r²
  • r² = 9 - 7
  • r = √2
  • r = 1.414cm

Hope it helps

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