3 years ago

The area of a circle is 39.62cm2. Find the length of the radius rounded to 2 DP.

Mathematics

1 answer:

Shkiper50 [21]3 years ago

4 0

Using the formula for area of a circle:

Area = pi x radius^2

Replace area with the given value:

39.62 = pi x radius^2

Divide both sides by pi

Radius^2 = 39.62/pi

Radius^2 = 12.62

Solve for radius by taking the square root of both sides

Radius = sqrt(12.62)

Radius = 3.55 cm

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