Westonci.ca connects you with experts who provide insightful answers to your questions. Join us today and start learning! Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

A circle has an area of [tex]30 \text{ in}^2[/tex]. What is the area of a [tex]60^{\circ}[/tex] sector of this circle?

A. [tex]3 \text{ in}^2[/tex]
B. [tex]10 \text{ in}^2[/tex]
C. [tex]5 \text{ in}^2[/tex]
D. [tex]6 \text{ in}^2[/tex]


Sagot :

To find the area of a [tex]\(60^\circ\)[/tex] sector of a circle with an area of [tex]\(30 \text{ in}^2\)[/tex], we can follow these steps:

1. Understand the Problem:
- We need the area of a sector of a circle, given that the total area of the circle is [tex]\(30 \text{ in}^2\)[/tex] and the central angle of the sector is [tex]\(60^\circ\)[/tex].

2. Formula for the Area of a Sector:
- The area of a sector of a circle can be found using the formula:
[tex]\[ \text{Sector Area} = \left( \frac{\text{Angle of Sector}}{360^\circ} \right) \times \text{Total Area of Circle} \][/tex]

3. Substitute the Values:
- The given angle of the sector is [tex]\(60^\circ\)[/tex].
- The total area of the circle is [tex]\(30 \text{ in}^2\)[/tex].

Substituting these values into the formula, we get:
[tex]\[ \text{Sector Area} = \left( \frac{60^\circ}{360^\circ} \right) \times 30 \text{ in}^2 \][/tex]

4. Simplify the Fraction:
- Simplify [tex]\(\frac{60^\circ}{360^\circ}\)[/tex]:
[tex]\[ \frac{60^\circ}{360^\circ} = \frac{1}{6} \][/tex]

5. Calculate the Sector Area:
- Now, multiply the simplified fraction by the total area of the circle:
[tex]\[ \text{Sector Area} = \frac{1}{6} \times 30 \text{ in}^2 = 5 \text{ in}^2 \][/tex]

6. Conclusion:
- The area of the [tex]\(60^\circ\)[/tex] sector of the circle is [tex]\(5 \text{ in}^2\)[/tex].

Therefore, the correct answer is:
[tex]\[ \boxed{5 \text{ in}^2} \][/tex]