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Find the radius of circle whose area is 616cm^(2).

Find the radius of circle whose area is 616 cm2 616 \mathrm{~cm}^{2} .

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Full solution

Q. Find the radius of circle whose area is 616 cm2 616 \mathrm{~cm}^{2} .
  1. Identify formula for area: Identify the formula for the area of a circle.\newlineThe formula for the area of a circle is A=πr2A = \pi r^2, where AA is the area and rr is the radius.
  2. Set up equation: Set up the equation with the given area.\newlineWe know the area A=616 cm2A = 616\,\text{cm}^2, so we can write the equation as 616=πr2616 = \pi r^2.
  3. Solve for r2r^2: Solve for r2r^2.\newlineTo find r2r^2, we divide both sides of the equation by π\pi: r2=616π.r^2 = \frac{616}{\pi}.
  4. {

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