CBSE · Class 10 · Mathematics · Areas Related to CirclesFind the area of a sector of a circle with radius 6 cm if angle of the sector is 60°. (Use $\pi = \frac{22}{7}$)
Step-by-Step Solution
Given:\nRadius of the circle ($r$) = 6 cm\nAngle of the sector ($\theta$) = 60° \nFormula for the area of a sector:\nArea = $\frac{\theta}{360°} \times \pi r^2$ \nSubstituting the given values:\nArea = $\frac{60°}{360°} \times \frac{22}{7} \times (6)^2$\nArea = $\frac{1}{6} \times \frac{22}{7} \times 36$\nArea = $\frac{1}{6} \times \frac{22}{7} \times 36$\nArea = $22 \times 6 \times \frac{1}{7}$\nArea = $\frac{132}{7} \text{ cm}^2$ \nTherefore, the area of the sector is $\frac{132}{7} \text{ cm}^2$ (or approximately $18.86 \text{ cm}^2$).
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