In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 288π cm².

What is the value of x?

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friendinneed friendinneed

06-03-2018
Mathematics

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In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 288π cm².

What is the value of x?

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Аноним Аноним · Answer 1 · 2018-03-06T22:19:44+01:00

Аноним Аноним

06-03-2018

area of shaded region = area of outer circle - area of inner circle.

288pi = pi * (2x)^2 - pi * 6^2

288 = 4x^2 - 36

4x^2 = 324
x^2 = 81
x = 9 cms Answer

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gabrieldavidmilGabe gabrieldavidmilGabe · Answer 2 · 2019-02-14T17:07:14+01:00

gabrieldavidmilGabe gabrieldavidmilGabe

14-02-2019

I have ALL the CORRECT answers for the quiz. Your answer is in the third pic.

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In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 288π cm². What is the value of x?

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In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 288π cm².

What is the value of x?