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The diameter of a circle is 12 meters. What is the area of a sector bounded by a 102° arc?Give the exact answer in simplest form.

Sagot :

Answer:

The area of the sector is;

[tex]\begin{gathered} 10.2\pi m^2 \\ or \\ 32.04m^2 \end{gathered}[/tex]

Explanation:

The Area of a sector can be calculated using the formula;

[tex]A=\frac{\theta}{360}\times\pi r^2[/tex]

Where:

A = area of the sector

Angle theta = the angle bounding the sector

r = radius

Given:

[tex]\begin{gathered} \theta=102^0 \\ r=\frac{\text{diameter}}{\text{2}}=\frac{12m}{2}=6m \\ r=6m \end{gathered}[/tex]

substituting the given values, we have;

[tex]\begin{gathered} A=\frac{102}{360}\times\pi(6^2) \\ A=10.2\pi m^2 \\ A=32.04m^2 \end{gathered}[/tex]

Therefore, the area of the sector is;

[tex]\begin{gathered} 10.2\pi m^2 \\ or \\ 32.04m^2 \end{gathered}[/tex]