How long does it take a penguin to walk 40 feet

Mathematics

1 answer:

LUCKY_DIMON [66]2 years ago

3 0

Answer:

3-5 minutes

Step-by-step explanation:

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JulijaS [17]

the value of x is 8 cm.

<u>Step-by-step explanation:</u>

Correct Question : 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 220π cm2. What is the value of x? Enter your answer in the box.

We have ,

the area of a circle = πr²

the outer circle area = $\pi(2x)^2 =4\pi x^2$