Find the area of a sector of a circle with radius 6 cm if the angle of the sector is 60 degrees. (Use π≈3.14\pi \approx 3.14)

Answer: The area of the sector is 18.84 cm218.84 \text{ cm}^2.

Step-by-step solution

Step 1: Identify Given Values

We are given the radius of the circle, rr, as 6 cm6 \text{ cm}, and the angle of the sector, θ\theta, as 6060 degrees. We also need to use the approximation π≈3.14\pi \approx 3.14.

Step 2: Formula for Area of a Sector

To find the area of a sector, we use the formula that relates the central angle of the sector to the total angle of a circle (360∘360^{\circ}).

Step 3: Substitute Values into Formula

Now we substitute the given values of θ=60∘\theta = 60^{\circ}, π=3.14\pi = 3.14, and r=6 cmr = 6 \text{ cm} into the formula for the area of a sector. This sets up the calculation.

Step 4: Simplify the Fraction

First, we simplify the fraction 60∘360∘\frac{60^{\circ}}{360^{\circ}}, which reduces to 16\frac{1}{6}. This makes the subsequent calculations easier.

Step 5: Calculate the Square of the Radius

Next, we calculate the square of the radius, 626^2, which is 36 cm236 \text{ cm}^2.

Step 6: Perform Multiplication

Now, we multiply 16\frac{1}{6} by 36 cm236 \text{ cm}^2, which simplifies to 6 cm26 \text{ cm}^2. The expression becomes 66 multiplied by 3.143.14.

Step 7: Final Calculation

Finally, we perform the last multiplication: 6×3.14=18.846 \times 3.14 = 18.84. This gives us the area of the sector in square centimeters.

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