To the nearest hundredth, what is the area of a circle with a radius of 3 units?A.28.27 square unitsB.18.85 square unitsC.9.42 square unitsD.29.61 square unitsSUBMITarrow_backPREVIOUS
Question
To the nearest hundredth, what is the area of a circle with a radius of 3 units?A.28.27 square unitsB.18.85 square unitsC.9.42 square unitsD.29.61 square unitsSUBMITarrow_backPREVIOUS
Solution
The area of a circle is calculated using the formula A = πr², where r is the radius of the circle.
Step 1: Substitute the given radius, which is 3 units, into the formula.
A = π(3)²
Step 2: Square the radius.
A = π(9)
Step 3: Multiply the squared radius by π (approximately 3.14).
A = 3.14 * 9
Step 4: Calculate the product.
A = 28.26 square units
So, to the nearest hundredth, the area of a circle with a radius of 3 units is 28.26 square units. Therefore, the answer is A. 28.27 square units.
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