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VikaD [51]
3 years ago
14

I need help in this before 11:59 please

Mathematics
1 answer:
Aliun [14]3 years ago
4 0

Step-by-step explanation:

√7 * √7 = 7 , which is not a irrational number

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The area of a circle is 43.25cm2.<br> Find the length of the radius rounded to 2 DP.
Monica [59]

Answer:

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Step-by-step explanation:

Hi there!

Area of a circle equation: A=\pi r^2 where r is the radius

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43.25=\pi r^2

Divide both sides by π to isolate r²

\frac{43.25}{\pi} =\frac{\pi r^2}{\pi} \\\frac{43.25}{\pi}=r^2

Take the square root of both sides to isolate r

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Therefore, the length of the radius rounded to 2 decimal points is 3.71 cm.

I hope this helps!

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